From 2005 to 2010, the company located in Jiugan Road, Songjiang District, Shanghai has been growing and expanding, from the original 10 employees to the present 200 employees, and began to divide into different departments, such as sales department, purchasing department, finance department and technology department. Fast structural growth prompted it to open branches across China in 2013. From 2015 to 2020, the company began to enter the field of foreign trade, and successively established Changruilong Metal (Suzhou) Co., LTD., Luoyue Precision Metal (Shanghai)Co., LTD., and Zhejiang Haixiang Metal (Hangzhou) Co., LTD. Focus on the export of metal material.

Zhejiang Qingshan Iron and Steel Co., Ltd. was established on December 4, 2002, registered in Xiaozhi Industrial Zone, Wenxi Town, Qingtian County, Lishui City, Zhejiang Province, the legal representative is Shen Liang, is a large stainless steel production enterprises under Qingshan Holding group.

Jiangxi Copper Group Co., LTD. (JIANGtong Group for short) was established in July 1979. It is a large combined enterprise integrating copper mining, smelting, smelting and processing in China's non- ferrous metal industry.

Yunnan Copper Co.,Ltd. was successfully listed in Shenzhen Stock Exchange in May 1998. The company mainly produces cathode Copper, gold, silver, sulfuric acid, Copper concentrate, iron concentrate and other products, and comprehensively recovers selenium, tellurium, platinum, palladium, indium, rhenium and so on. The company participates in holding 6 copper treatment refineries and 11 large and medium-sized copper mines, keeping copper resource reserves of 5.84 million tons, forming an annual copper concentrate bearing capacity of 120,000 tons.

Henan Mingtai Aluminum Co., LTD., founded in 1997 in Gongyi Industrial Cluster Area, Henan Province, is a private aluminum processing enterprise integrating advanced technology, intelligent integration and comprehensive services. Its business covers aluminum intensive processing, rail transit, power and heat, financial services, import and export trade and other fields. At present, the company has an annual production capacity of 1.2 million tons of aluminum sheet and foil products and 400 bullet train body. Guided by scientific and technological innovation, the company continues to optimize the product structure, forward-looking layout of recycled aluminum projects, promote the green transformation and upgrading of the company, and help Mingtai Aluminum enter the zero waste era of efficient resource recycling. After years of cumulative development,

Nan nan Aluminum Co., LTD. (HEREINAFTER referred to as Nan Nan Aluminum Co., LTD.) was founded in 1958 as guangxi nanning Aluminum Factory, the first aluminum industrial enterprise in Guangxi. The company is an enterprise mainly engaged in aluminum processing and deep processing, mainly engaged in the research and development, design, production and sales of aluminum strip and foil profiles and their deep processing products. The company has formed an enterprise development strategy to develop high-tech, energy-saving and environment-friendly aluminum intensive processing products on the basis of aluminum plate, strip, foil and profile. The company has an annual production capacity of 80,000 tons of aluminum plates, strips, foils, profiles and deep processing products, with an annual sales of 2 billion yuan. The number of employees is 5,124.