Yang Liu

Daye Nonferrous Metals Group Holdings Ltd. engages in the provision of copper mining and mineral processing services. Its products include iron ore, molybdenum concentrate, copper cathode, sulfuric acid, gold, silver, platinum, palladium, molybdenum, rhenium, selenium, lead, zinc, bismuth, tellurium, and nickel sulfate. The company was founded in 1953 and is headquartered in Huangshi, China.

Chongqing Doyen (Holdings) Co. Ltd. is an investment holding company based in Chongqing, China. The Chinese company operates in equipment manufacturing and real estate. The company was founded by Siu Yu Lo and Xiao Bo Wang has been the CEO of the company since 2003.

Part of Dima Holdings Co., Ltd., Chengdu Dongyin Information Technology Co., Ltd. designs, develops, and distributes consumable digital information and computer network related software and hardware products. The company is based in Chengdu, China. Chengdu Dongyin Information Technology Co. was acquired by Dima Holdings Co., Ltd. from Chongqing Doyen (Holdings) Co. Ltd. on December 31, 2004 for $0.31 million.

Part of Central Plains Environment Protection Co., Ltd., Zhengzhou Sewage Purification Co., Ltd. is a company that provides sewage treatment services. Zhengzhou Sewage Purification Co., Ltd. is based in Zhengzhou, China. Zhengzhou Sewage Purification Co. was acquired by Central Plains Environment Protection Co., Ltd. from Zhengzhou Public Project Investment Development Group Co. Ltd. on March 17, 2023 for $633.92 million. The Chinese company was founded in 1998. The CEO is Zhong Yu Luo.

Henan Golden Dragon Precise Copper Tube, Inc. engages in the manufacture and sale of copper pipes and tubes. Its business activities consist of the following: manufacture of non-ferrous metals; research, development, production and sale of new energy materials; hotel management; and mining business. Its products include high precision copper tubes, high efficient inner-grooved tubes, copper tubes with plastic, copper alloy tubes, capillary tubes, and tube fittings. The company was founded in 1987 and is headquartered in Xinxiang, China.

Yima Coal Industry Group Co Ltd is a state-owned manufacturing enterprise. The company mainly manufactures & distributes coals. It was founded in 1958 and is headquartered in Henan, CN.

Asia Pacific (Group) Certified Public Accountants Co., Ltd. provides financial services. The private company is based in Zhengzhou, China.

Zhengzhou Kangqiao Real Estate Development Co. Ltd. is a Chinese private company located in Zhengzhou that develops and constructs real estate properties.

Central Plains Environment Protection (Zhengzhou) Equipment Engineering & Technology Co Ltd. engages in the construction and management of parks and hydroelectric power projects. Its business scope survey, design, technical consultation, general contracting, and custody operations of municipal, environmental protection, water conservancy and hydropower, mechanical and electrical installation, and landscaping engineering; research and development, manufacturing, sales, and after-sales service of related engineering equipment. The company was founded on october 10, 2017 and is headquartered in Zhengzhou, China.

CPEP Dingsheng Zhengzhou Solid Waste Tech Co., Ltd. engages in investment, construction, and operation of construction waste and sludge disposal projects. It also provides services for the entire waste management industry chain. The company was founded on November 1, 2017 and is headquartered in Henan, China.

Part of Central Plains Environment Protection Co., Ltd., Central Plains Shengqi New Energy Equipment Co., Ltd. is a Chinese company that engages in the production, assembly, and sale of sludge treatment equipment. The company is based in Zhengzhou, China. The company was founded in 2018. The CEO is Xiu Ge Guo.