WSP Holdings Limited (WSP Holdings, is a China-based holding company and conducts all of its operations through its subsidiaries in China. The Company is a manufacturer of seamless oil country tubular goods (OCTG), including casing, tubing and drill pipes used for oil and natural gas exploration, drilling and extraction, and other pipes and connectors. It sells its products in both domestic and international markets. In China, the Company target sales of its products primarily at Chinese oil companies. In the international markets, the Company has established an overseas customer base, covering oilfields in North and South America, the Middle East, Asia, Africa and Russia. Its product portfolio can be divided into two categories: API (American Petroleum Institute) products and non-API products.