PrimeStar Oil Technology CORP. (hereinafter referred to as " PrimeStar ") is an established manufacturer and service provider of a comprehensive range of downhole drilling & completion tools. PrimeStar range comprises PrimeGuard series of subsurface safety valves, PrimeSeal series of packers, StarEdge series performance mills, StarReam Drilling Reamer Star Mag String Magnet, StarClear Casing Scraper, StarFlush Circulation Sub, etc. PrimeStar is registered as a National High-tech Enterprise and Beijing science and technology R&D institutions. PrimeStar is listed on National Equities Exchange and Quotations with Stock Code 430321.Quality Assurance and Quality Control SystemPrimeStaris an ISO9001, ISO14001 and OHSAS18001 certified company. API 14A  API 11D1 APIQ1SCSSV and packers are monogram licensed to API 14A and API 11D1. The company has all the quality system in place for design, manufacturing and quality monitoring to ensure a consistent high quality which is similar to international majors.HSE Management SystemPrimeStar is committed to provide the safest working place and always regard safety as its top priority. Rigorous policies and procedures are in place to ensure this commitment is improved on a continuous basis. Manager and employees at all levels are provided with sufficient tools and training to implement safety practices for the prevention of accidents.