Kingdream International Trade (Wuhan) Co., Ltd. is the wholly owned subsidiary company of Kingdream Public Limited Company. Kingdream Public Limited Company has been entitled as National First Class Enterprise and National Key Hi-Tech Enterprise. We are one of the largest oil and gas drilling bit manufacturer in the world. The former of our company, Jianghan Rock Bit Plant, was set up in 1973. Kingdream successfully introduced advanced drilling bit manufacturing technologies from abroad in 1980s and became a listed company in 1998. Our company has two rock bit manufacturing bases (Qianjiang Rock Bit Division and Shanghai Branch Company) and several subsidiaries including Chengde Kingdream Petroleum Machinery Co., Ltd.
Being market oriented, Kingdream cooperates with many research institutes and universities with the purpose of combining production, study, research and application. We continuously push forward technical innovation and product research and development, and actively construct a technical system with our own intellectual property rights. Kingdream currently has 110 patents granted in China and 11 patents granted in foreign countries and regions including the USA, Russia and Iran. We also have 115 proprietary technologies.
Kingdream has set up a perfect marketing and service network, which is spread over every major oil field in China and covers all five continents of the world. Our company has set up 18 domestic service stations and 6 overseas offices. Domestic market share of Kingdream's main products, roller cone bits for oil well drilling, have been kept above 60% for many years and the international market share has reached 10%. Our products have been sold to 31 countries and regions in the world including the USA, Canada, Iran, Russia, Kazakhstan and Sudan.
Kingdream continuously pushes lean production and enhances technical reconstruction and new process application. Our company has 341 sets of world advanced machinery such as Sharmann machining centers and FMS flexible manufacturing systems, which ensure manufacturing technology of Kingdream is at the leading position in China and advanced level in the world. At present, our company has formed the manufacturing capacity of 9 standard series and 1400 types of rock bits. Kingdream's products have been licensed under API Spec. 7 successively for many years. Our quality management system is ISO9001 certified and our company also passed HSE certification.
Kingdream always regards technical innovation as core, product quality as key and customer satisfaction as criteria. Kingdream has been highly recognized by customers for many years owing to solid strength, outstanding reputations, strict quality control and excellent customer service. Our company has been successively awarded the honors of National Advanced Unit in Patent System, National Advanced Quality Benefit Enterprise, National Advanced Enterprise in Product Quality and After-Sales Service, International Market Top 10 Chinese (Petroleum Machinery) Brands, and China's Fifth Session the Most innovative Enterprise.
To promote continuous development of petroleum industry with innovative technologies and excellent products is Kingdream's unremitting pursuance. Entering new growing phase and facing new developing opportunity, Kingdream shall expedite the pace of making the company bigger and stronger with technical innovation as support. Our company is vigorously engaged in other businesses related to petroleum equipment while making the existing rock bit business still better. Therefore, Kingdream shall eventually develop into the petroleum equipment manufacturing base of Sinopec, a first class rock bit manufacturer around the world, and a modern group company of petroleum equipment manufacture and service that is famous internationally.
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