Chongqing Rail Transit Design and Research Institute Co., Ltd. (hereinafter referred to as the \"Company\") was established in October 2003 and

is a wholly-owned subsidiary of Chongqing City Transportation Development & Investment Group Co., Ltd.The Company holds consulting and

planning qualifications such as Class A qualification for railway and urban rail transit engineering, and Class B qualification for urban and rural

planning compilation; Class A design qualifications for municipal utilities industry (rail transit engineering) and architectural industry

(building engineering), as well as Class B design qualifications for municipal utilities industry (bridge engineering), power industry (new

energy power generation), power industry (power transmission engineering), and power industry (substation engineering); Class A supervision qualifications for municipal utilities engineering, housing construction engineering, and equipment supervision, along with Class B

supervision qualifications for railway engineering, power engineering, and mechanical and electrical installation engineering; and Class B

surveying and mapping qualification for engineering survey. It is mainly engaged in consulting, design, supervision, scientific research and

other work.

Through introduction, digestion, absorption and innovation, the Company has mastered key core technologies for the construction of

straddle-beam monorails and mountainous city subways, and fully participated in the design and construction of Chongqing's rail transit

projects (operating mileage of more than 500km) that are open to traffic and under construction, the design and construction of suburban

railways, and the feasibility study of planned railway networks. In addition, it has actively participated in the rail transit system construction in

cities such as Lanzhou, Lhasa and Qingdao.

The Company was named as a National High-tech Enterprise, a Chongqing Science and Technology Reform Demonstration Enterprise, and a

Chongqing Innovative Small and Medium-sized Enterprise, and has established a series of scientific research and innovation platforms such

as Chongqing Enterprise Technology Center, Chongqing Urban Monorail Transportation Engineering Technology Research Center, Chongqing

New R&D Institution, and Chongqing Postdoctoral Research Center.

Class A qualification for municipal utilities industry (rail transit

engineering)

Class A qualification for building industry (building engineering)

Class A qualification for railway and urban rail transit engineering

Class A supervision qualification for municipal utilities engineering

Class A supervision qualification for housing construction

engineering

Class A supervision qualification for equipment

Class B qualification for municipal utilities industry (bridge

engineering)

Class B qualification for power industry (new energy power

generation)

Class B qualification for power industry (power transmission

engineering)

Class B qualification for power industry (substation engineering)

Class B qualification for urban and rural planning compilation

Class B supervision qualification for railway engineering

Class B supervision qualification for power engineering

Class B qualification for engineering survey

Class B supervision qualification for mechanical and electrical

installation engineering

Building 1,No.26,North Lihuan Road,Liangjiang District,Chongqing

Email Addresses:

cscwgdy@sina.com

184402532@qq.com

Chongqing Rail Transit Design and Research Institute Co., Ltd. (hereinafter referred to as the \"Company\") was established in October 2003 and

is a wholly-owned subsidiary of Chongqing City Transportation Development & Investment Group Co., Ltd.The Company holds consulting and

planning qualifications such as Class A qualification for railway and urban rail transit engineering, and Class B qualification for urban and rural

planning compilation; Class A design qualifications for municipal utilities industry (rail transit engineering) and architectural industry

(building engineering), as well as Class B design qualifications for municipal utilities industry (bridge engineering), power industry (new

energy power generation), power industry (power transmission engineering), and power industry (substation engineering); Class A supervision qualifications for municipal utilities engineering, housing construction engineering, and equipment supervision, along with Class B

supervision qualifications for railway engineering, power engineering, and mechanical and electrical installation engineering; and Class B

surveying and mapping qualification for engineering survey. It is mainly engaged in consulting, design, supervision, scientific research and

other work.

Through introduction, digestion, absorption and innovation, the Company has mastered key core technologies for the construction of

straddle-beam monorails and mountainous city subways, and fully participated in the design and construction of Chongqing's rail transit

projects (operating mileage of more than 500km) that are open to traffic and under construction, the design and construction of suburban

railways, and the feasibility study of planned railway networks. In addition, it has actively participated in the rail transit system construction in

cities such as Lanzhou, Lhasa and Qingdao.

The Company was named as a National High-tech Enterprise, a Chongqing Science and Technology Reform Demonstration Enterprise, and a

Chongqing Innovative Small and Medium-sized Enterprise, and has established a series of scientific research and innovation platforms such

as Chongqing Enterprise Technology Center, Chongqing Urban Monorail Transportation Engineering Technology Research Center, Chongqing

New R&D Institution, and Chongqing Postdoctoral Research Center.

Class A qualification for municipal utilities industry (rail transit

engineering)

Class A qualification for building industry (building engineering)

Class A qualification for railway and urban rail transit engineering

Class A supervision qualification for municipal utilities engineering

Class A supervision qualification for housing construction

engineering

Class A supervision qualification for equipment

Class B qualification for municipal utilities industry (bridge

engineering)

Class B qualification for power industry (new energy power

generation)

Class B qualification for power industry (power transmission

engineering)

Class B qualification for power industry (substation engineering)

Class B qualification for urban and rural planning compilation

Class B supervision qualification for railway engineering

Class B supervision qualification for power engineering

Class B qualification for engineering survey

Class B supervision qualification for mechanical and electrical

installation engineering

Building 1,No.26,North Lihuan Road,Liangjiang District,Chongqing

The total length of the line is approximately 48km. The first automatic switching line using 1500V

DC and 25KV AC in China has realized the operation of the river jumper line with the \"double current

system\" municipal railway. At the same time, it is also the first time in China to adopt the AS-type

train project in mountain cities, setting a new benchmark for the field of urban rail transit.

The line is approximately 41km in total length. It is the first metro project that integrates an

elevated metro through buildings and commercial podiums in a co-construction design. Another

first for this project is the adoption of lightweight, prefabricated monolithic track bed and

composite vibration/noise reduction technology in the design. These advanced systems have

effectively improved the overall vibration reduction performance of the line. The project also

features the construction of Hongyancun Station, which is the deepest underground metro

station in China. The station's interior decoration incorporates the art form of embossing,

showcasing Chongqing's unique red culture and Hongyan spirit.

Acquired over 10 honors, including the Chongqing Science and Technology Progress Award and the Science and Technology Progress Award

from the China Association of Metros, led or participated in more than 60 provincial and ministerial-level research projects, developed over

50 national, industry, and local standards, and obtained over 100 national authorized patents.

It has independently researched and developed several key technologies for straddle monorail transit systems: 3D simulation design

software for straddle monorail guideways, Straddle monorail transit translation type turnouts, straddle monorail stress-free connecting rigid

frame guideway bridge system, and beam-type composite prefabricated monolithic track bed. Additionally, the company has proposed a

prefabricated underground station design for rail transit in mountainous cities, using an open-cut method, realized the dual-mode shield

design for high fill embankments in mountainous cities, and achieved autonomous optimization and operation of monorail trains in

marshalling mode. It has pioneered several excavation methods for bored tunnels with super-large section using a concealed excavation

method, such as the reverse construction method, which utilizes an arch cover approach for super-large section tunnels, the bench method

of expanding arch foot during the initial support, the alternate excavation method for double-tunnels with small clearances and large section

with steep bedding, the in-situ excavation method for tunnels with small clearances.It has established a technical standard system for

straddle monorail transit. Additionally, it has published a range of professional works covering core straddle monorail technologies,

including the Straddle Monorail Vehicles, Straddle Monorail Transit Turnout System, Straddle Monorail Transit Signal System, Guideway

Bridge System.

The total length of the line is approximately 48km. The first automatic switching line using 1500V

DC and 25KV AC in China has realized the operation of the river jumper line with the \"double current

system\" municipal railway. At the same time, it is also the first time in China to adopt the AS-type

train project in mountain cities, setting a new benchmark for the field of urban rail transit.

The line is approximately 41km in total length. It is the first metro project that integrates an

elevated metro through buildings and commercial podiums in a co-construction design. Another

first for this project is the adoption of lightweight, prefabricated monolithic track bed and

composite vibration/noise reduction technology in the design. These advanced systems have

effectively improved the overall vibration reduction performance of the line. The project also

features the construction of Hongyancun Station, which is the deepest underground metro

station in China. The station's interior decoration incorporates the art form of embossing,

showcasing Chongqing's unique red culture and Hongyan spirit.

Acquired over 10 honors, including the Chongqing Science and Technology Progress Award and the Science and Technology Progress Award

from the China Association of Metros, led or participated in more than 60 provincial and ministerial-level research projects, developed over

50 national, industry, and local standards, and obtained over 100 national authorized patents.

It has independently researched and developed several key technologies for straddle monorail transit systems: 3D simulation design

software for straddle monorail guideways, Straddle monorail transit translation type turnouts, straddle monorail stress-free connecting rigid

frame guideway bridge system, and beam-type composite prefabricated monolithic track bed. Additionally, the company has proposed a

prefabricated underground station design for rail transit in mountainous cities, using an open-cut method, realized the dual-mode shield

design for high fill embankments in mountainous cities, and achieved autonomous optimization and operation of monorail trains in

marshalling mode. It has pioneered several excavation methods for bored tunnels with super-large section using a concealed excavation

method, such as the reverse construction method, which utilizes an arch cover approach for super-large section tunnels, the bench method

of expanding arch foot during the initial support, the alternate excavation method for double-tunnels with small clearances and large section

with steep bedding, the in-situ excavation method for tunnels with small clearances.It has established a technical standard system for

straddle monorail transit. Additionally, it has published a range of professional works covering core straddle monorail technologies,

including the Straddle Monorail Vehicles, Straddle Monorail Transit Turnout System, Straddle Monorail Transit Signal System, Guideway

Bridge System.

The total length of the line is approximately 48km. The first automatic switching line using 1500V

DC and 25KV AC in China has realized the operation of the river jumper line with the \"double current

system\" municipal railway. At the same time, it is also the first time in China to adopt the AS-type

train project in mountain cities, setting a new benchmark for the field of urban rail transit.

The line is approximately 41km in total length. It is the first metro project that integrates an

elevated metro through buildings and commercial podiums in a co-construction design. Another

first for this project is the adoption of lightweight, prefabricated monolithic track bed and

composite vibration/noise reduction technology in the design. These advanced systems have

effectively improved the overall vibration reduction performance of the line. The project also

features the construction of Hongyancun Station, which is the deepest underground metro

station in China. The station's interior decoration incorporates the art form of embossing,

showcasing Chongqing's unique red culture and Hongyan spirit.

Acquired over 10 honors, including the Chongqing Science and Technology Progress Award and the Science and Technology Progress Award

from the China Association of Metros, led or participated in more than 60 provincial and ministerial-level research projects, developed over

50 national, industry, and local standards, and obtained over 100 national authorized patents.

It has independently researched and developed several key technologies for straddle monorail transit systems: 3D simulation design

software for straddle monorail guideways, Straddle monorail transit translation type turnouts, straddle monorail stress-free connecting rigid

frame guideway bridge system, and beam-type composite prefabricated monolithic track bed. Additionally, the company has proposed a

prefabricated underground station design for rail transit in mountainous cities, using an open-cut method, realized the dual-mode shield

design for high fill embankments in mountainous cities, and achieved autonomous optimization and operation of monorail trains in

marshalling mode. It has pioneered several excavation methods for bored tunnels with super-large section using a concealed excavation

method, such as the reverse construction method, which utilizes an arch cover approach for super-large section tunnels, the bench method

of expanding arch foot during the initial support, the alternate excavation method for double-tunnels with small clearances and large section

with steep bedding, the in-situ excavation method for tunnels with small clearances.It has established a technical standard system for

straddle monorail transit. Additionally, it has published a range of professional works covering core straddle monorail technologies,

including the Straddle Monorail Vehicles, Straddle Monorail Transit Turnout System, Straddle Monorail Transit Signal System, Guideway

Bridge System.

The total length of the line is approximately 48km. The first automatic switching line using 1500V

DC and 25KV AC in China has realized the operation of the river jumper line with the \"double current

system\" municipal railway. At the same time, it is also the first time in China to adopt the AS-type

train project in mountain cities, setting a new benchmark for the field of urban rail transit.

The line is approximately 41km in total length. It is the first metro project that integrates an

elevated metro through buildings and commercial podiums in a co-construction design. Another

first for this project is the adoption of lightweight, prefabricated monolithic track bed and

composite vibration/noise reduction technology in the design. These advanced systems have

effectively improved the overall vibration reduction performance of the line. The project also

features the construction of Hongyancun Station, which is the deepest underground metro

station in China. The station's interior decoration incorporates the art form of embossing,

showcasing Chongqing's unique red culture and Hongyan spirit.

Acquired over 10 honors, including the Chongqing Science and Technology Progress Award and the Science and Technology Progress Award

from the China Association of Metros, led or participated in more than 60 provincial and ministerial-level research projects, developed over

50 national, industry, and local standards, and obtained over 100 national authorized patents.

It has independently researched and developed several key technologies for straddle monorail transit systems: 3D simulation design

software for straddle monorail guideways, Straddle monorail transit translation type turnouts, straddle monorail stress-free connecting rigid

frame guideway bridge system, and beam-type composite prefabricated monolithic track bed. Additionally, the company has proposed a

prefabricated underground station design for rail transit in mountainous cities, using an open-cut method, realized the dual-mode shield

design for high fill embankments in mountainous cities, and achieved autonomous optimization and operation of monorail trains in

marshalling mode. It has pioneered several excavation methods for bored tunnels with super-large section using a concealed excavation

method, such as the reverse construction method, which utilizes an arch cover approach for super-large section tunnels, the bench method

of expanding arch foot during the initial support, the alternate excavation method for double-tunnels with small clearances and large section

with steep bedding, the in-situ excavation method for tunnels with small clearances.It has established a technical standard system for

straddle monorail transit. Additionally, it has published a range of professional works covering core straddle monorail technologies,

including the Straddle Monorail Vehicles, Straddle Monorail Transit Turnout System, Straddle Monorail Transit Signal System, Guideway

Bridge System.

The total length of the line is approximately 48km. The first automatic switching line using 1500V

DC and 25KV AC in China has realized the operation of the river jumper line with the \"double current

system\" municipal railway. At the same time, it is also the first time in China to adopt the AS-type

train project in mountain cities, setting a new benchmark for the field of urban rail transit.

The line is approximately 41km in total length. It is the first metro project that integrates an

elevated metro through buildings and commercial podiums in a co-construction design. Another

first for this project is the adoption of lightweight, prefabricated monolithic track bed and

composite vibration/noise reduction technology in the design. These advanced systems have

effectively improved the overall vibration reduction performance of the line. The project also

features the construction of Hongyancun Station, which is the deepest underground metro

station in China. The station's interior decoration incorporates the art form of embossing,

showcasing Chongqing's unique red culture and Hongyan spirit.

Acquired over 10 honors, including the Chongqing Science and Technology Progress Award and the Science and Technology Progress Award

from the China Association of Metros, led or participated in more than 60 provincial and ministerial-level research projects, developed over

50 national, industry, and local standards, and obtained over 100 national authorized patents.

It has independently researched and developed several key technologies for straddle monorail transit systems: 3D simulation design

software for straddle monorail guideways, Straddle monorail transit translation type turnouts, straddle monorail stress-free connecting rigid

frame guideway bridge system, and beam-type composite prefabricated monolithic track bed. Additionally, the company has proposed a

prefabricated underground station design for rail transit in mountainous cities, using an open-cut method, realized the dual-mode shield

design for high fill embankments in mountainous cities, and achieved autonomous optimization and operation of monorail trains in

marshalling mode. It has pioneered several excavation methods for bored tunnels with super-large section using a concealed excavation

method, such as the reverse construction method, which utilizes an arch cover approach for super-large section tunnels, the bench method

of expanding arch foot during the initial support, the alternate excavation method for double-tunnels with small clearances and large section

with steep bedding, the in-situ excavation method for tunnels with small clearances.It has established a technical standard system for

straddle monorail transit. Additionally, it has published a range of professional works covering core straddle monorail technologies,

including the Straddle Monorail Vehicles, Straddle Monorail Transit Turnout System, Straddle Monorail Transit Signal System, Guideway

Bridge System.

Chongqing Rail Transit Design and Research Institute Co., Ltd. (hereinafter referred to as the \"Company\") was established in October 2003 and

is a wholly-owned subsidiary of Chongqing City Transportation Development & Investment Group Co., Ltd.The Company holds consulting and

planning qualifications such as Class A qualification for railway and urban rail transit engineering, and Class B qualification for urban and rural

planning compilation; Class A design qualifications for municipal utilities industry (rail transit engineering) and architectural industry

(building engineering), as well as Class B design qualifications for municipal utilities industry (bridge engineering), power industry (new

energy power generation), power industry (power transmission engineering), and power industry (substation engineering); Class A supervision qualifications for municipal utilities engineering, housing construction engineering, and equipment supervision, along with Class B

supervision qualifications for railway engineering, power engineering, and mechanical and electrical installation engineering; and Class B

surveying and mapping qualification for engineering survey. It is mainly engaged in consulting, design, supervision, scientific research and

other work.

Through introduction, digestion, absorption and innovation, the Company has mastered key core technologies for the construction of

straddle-beam monorails and mountainous city subways, and fully participated in the design and construction of Chongqing's rail transit

projects (operating mileage of more than 500km) that are open to traffic and under construction, the design and construction of suburban

railways, and the feasibility study of planned railway networks. In addition, it has actively participated in the rail transit system construction in

cities such as Lanzhou, Lhasa and Qingdao.

The Company was named as a National High-tech Enterprise, a Chongqing Science and Technology Reform Demonstration Enterprise, and a

Chongqing Innovative Small and Medium-sized Enterprise, and has established a series of scientific research and innovation platforms such

as Chongqing Enterprise Technology Center, Chongqing Urban Monorail Transportation Engineering Technology Research Center, Chongqing

New R&D Institution, and Chongqing Postdoctoral Research Center.

Class A qualification for municipal utilities industry (rail transit

engineering)

Class A qualification for building industry (building engineering)

Class A qualification for railway and urban rail transit engineering

Class A supervision qualification for municipal utilities engineering

Class A supervision qualification for housing construction

engineering

Class A supervision qualification for equipment

Class B qualification for municipal utilities industry (bridge

engineering)

Class B qualification for power industry (new energy power

generation)

Class B qualification for power industry (power transmission

engineering)

Class B qualification for power industry (substation engineering)

Class B qualification for urban and rural planning compilation

Class B supervision qualification for railway engineering

Class B supervision qualification for power engineering

Class B qualification for engineering survey

Class B supervision qualification for mechanical and electrical

installation engineering

Building 1,No.26,North Lihuan Road,Liangjiang District,Chongqing

Chongqing Rail Transit Design and Research Institute Co., Ltd. (hereinafter referred to as the \"Company\") was established in October 2003 and

is a wholly-owned subsidiary of Chongqing City Transportation Development & Investment Group Co., Ltd.The Company holds consulting and

planning qualifications such as Class A qualification for railway and urban rail transit engineering, and Class B qualification for urban and rural

planning compilation; Class A design qualifications for municipal utilities industry (rail transit engineering) and architectural industry

(building engineering), as well as Class B design qualifications for municipal utilities industry (bridge engineering), power industry (new

energy power generation), power industry (power transmission engineering), and power industry (substation engineering); Class A supervision qualifications for municipal utilities engineering, housing construction engineering, and equipment supervision, along with Class B

supervision qualifications for railway engineering, power engineering, and mechanical and electrical installation engineering; and Class B

surveying and mapping qualification for engineering survey. It is mainly engaged in consulting, design, supervision, scientific research and

other work.

Through introduction, digestion, absorption and innovation, the Company has mastered key core technologies for the construction of

straddle-beam monorails and mountainous city subways, and fully participated in the design and construction of Chongqing's rail transit

projects (operating mileage of more than 500km) that are open to traffic and under construction, the design and construction of suburban

railways, and the feasibility study of planned railway networks. In addition, it has actively participated in the rail transit system construction in

cities such as Lanzhou, Lhasa and Qingdao.

The Company was named as a National High-tech Enterprise, a Chongqing Science and Technology Reform Demonstration Enterprise, and a

Chongqing Innovative Small and Medium-sized Enterprise, and has established a series of scientific research and innovation platforms such

as Chongqing Enterprise Technology Center, Chongqing Urban Monorail Transportation Engineering Technology Research Center, Chongqing

New R&D Institution, and Chongqing Postdoctoral Research Center.

Class A qualification for municipal utilities industry (rail transit

engineering)

Class A qualification for building industry (building engineering)

Class A qualification for railway and urban rail transit engineering

Class A supervision qualification for municipal utilities engineering

Class A supervision qualification for housing construction

engineering

Class A supervision qualification for equipment

Class B qualification for municipal utilities industry (bridge

engineering)

Class B qualification for power industry (new energy power

generation)

Class B qualification for power industry (power transmission

engineering)

Class B qualification for power industry (substation engineering)

Class B qualification for urban and rural planning compilation

Class B supervision qualification for railway engineering

Class B supervision qualification for power engineering

Class B qualification for engineering survey

Class B supervision qualification for mechanical and electrical

installation engineering

Building 1,No.26,North Lihuan Road,Liangjiang District,Chongqing

Chongqing Rail Transit Design and Research Institute Co., Ltd. (hereinafter referred to as the \"Company\") was established in October 2003 and

is a wholly-owned subsidiary of Chongqing City Transportation Development & Investment Group Co., Ltd.The Company holds consulting and

planning qualifications such as Class A qualification for railway and urban rail transit engineering, and Class B qualification for urban and rural

planning compilation; Class A design qualifications for municipal utilities industry (rail transit engineering) and architectural industry

(building engineering), as well as Class B design qualifications for municipal utilities industry (bridge engineering), power industry (new

energy power generation), power industry (power transmission engineering), and power industry (substation engineering); Class A supervision qualifications for municipal utilities engineering, housing construction engineering, and equipment supervision, along with Class B

supervision qualifications for railway engineering, power engineering, and mechanical and electrical installation engineering; and Class B

surveying and mapping qualification for engineering survey. It is mainly engaged in consulting, design, supervision, scientific research and

other work.

Through introduction, digestion, absorption and innovation, the Company has mastered key core technologies for the construction of

straddle-beam monorails and mountainous city subways, and fully participated in the design and construction of Chongqing's rail transit

projects (operating mileage of more than 500km) that are open to traffic and under construction, the design and construction of suburban

railways, and the feasibility study of planned railway networks. In addition, it has actively participated in the rail transit system construction in

cities such as Lanzhou, Lhasa and Qingdao.

The Company was named as a National High-tech Enterprise, a Chongqing Science and Technology Reform Demonstration Enterprise, and a

Chongqing Innovative Small and Medium-sized Enterprise, and has established a series of scientific research and innovation platforms such

as Chongqing Enterprise Technology Center, Chongqing Urban Monorail Transportation Engineering Technology Research Center, Chongqing

New R&D Institution, and Chongqing Postdoctoral Research Center.

Class A qualification for municipal utilities industry (rail transit

engineering)

Class A qualification for building industry (building engineering)

Class A qualification for railway and urban rail transit engineering

Class A supervision qualification for municipal utilities engineering

Class A supervision qualification for housing construction

engineering

Class A supervision qualification for equipment

Class B qualification for municipal utilities industry (bridge

engineering)

Class B qualification for power industry (new energy power

generation)

Class B qualification for power industry (power transmission

engineering)

Class B qualification for power industry (substation engineering)

Class B qualification for urban and rural planning compilation

Class B supervision qualification for railway engineering

Class B supervision qualification for power engineering

Class B qualification for engineering survey

Class B supervision qualification for mechanical and electrical

installation engineering

Building 1,No.26,North Lihuan Road,Liangjiang District,Chongqing

Email Addresses:

cscwgdy@sina.com

184402532@qq.com