Hunan nonferrous metals holding group co., ltd. ( hereinafter referred to as " Hunan nonferrous metals group", abbreviated as " hng" ) was established on August 20th, 2004, with a registered capital of 2.8 billion yuan. it is a provincial large-scale state-owned company with nonferrous metal production and sales as its main business, and it is one of the top 500 Chinese enterprises and top 500 Chinese manufacturing enterprises.
Zhuzhou smelting group co., ltd. is a wholly state-owned company restructured from Zhuzhou smelter. the group company is a non-ferrous metal comprehensive smelting enterprise which mainly produces zinc, lead and its alloy products, and comprehensively recycles copper, gold, silver, bismuth, cadmium, indium and other rare precious metals and sulfuric acid products. its annual production capacity reaches 330,000 tons, including 250,000 tons of zinc, 70,000 tons of lead and 10,000 tons of copper, with a sales income of 3.2 billion yuan. its export of lead and zinc accounts for 20 % of the total export of lead and zinc in China, and it is the main production and export base of lead and zinc.
Guangzhou kunnai building materials co., ltd., established in 2008, is a leading professional enterprise in the production, research and development, and sales of building acoustic materials in China. the company has always adhered to the product management philosophy of environmental protection, safety and quality, committed itself to the market promotion of sound insulation, noise reduction and heat insulation materials, and turned kunnai into a leading brand in the industry.
China building materials group co., ltd. ( hereinafter referred to as China building materials group ) is a central enterprise directly managed by the state-owned assets supervision and administration commission of the state Council, which is approved by the state Council and reorganized from China building materials group co., ltd. and China sinoma group co., ltd..
Zhejiang east building materials group co., ltd. was founded in 1985. it covers an area of more than 800,000 square meters with total assets of 3 billion yuan. there are more than 2000 employees, more than 300 professionals with various professional and technical titles, and more than 120 professionals with high and intermediate titles.