Baoji Petroleum Steel Pipe Company, formerly known as Baoji Petroleum Steel Pipe Factory, was founded in 1958. It is one of the key construction projects in China during the First Five-Year Plan period 156, and it is also the first manufacturer in China to produce large-diameter spiral submerged arc welded pipes. China Petroleum and Natural Gas Group Corporation is a large-scale national enterprise integrating scientific research, pipe making, anticorrosion, casing and steel pipe fittings processing. The total assets of the enterprise are 2 billion yuan and the annual sales income is 3 billion yuan.
UMW Malaysia is the designated supplier of Petronas Malaysia. It is a listed company controlled by the Malaysian government. Founded in 1902, it has 9 professional companies, and its business involves many industries such as petroleum, steel, automobile and heavy machinery. With the support of Malaysia, the company has participated in the investment and development of upstream and downstream petroleum products in 30 countries around the world, with total assets of 600 million US dollars and annual sales income of 2.5 billion US dollars.