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About COSL

COSL has the largest and most diverse offshore oilfield services facilities in China. COSL's services not only cover offshore China and the Asia-Pacific regions, but also extend internationally to the Southeast Asia, the Middle East, the Americas, and Europe, the Africa, the Far East and touch more than thirty countries and areas around the world. In 2017 COSL operated thirty-three jack-ups, twelve semi-submersibles, five module rigs, and two accommodations rigs, totaling fifty-two various platforms. Supporting them were COSL's one-hundred-and-thirty working vessels, thirteen seismic survey ships, and more than four-hundred-and-thirty units of modern facilities and equipment for logging, directional drilling, drilling-fluids handling, cementing, and well workover services— all being augmented by COSL's self-developed logging-while-drilling tool, DRILOG®, and COSL's rotary steering drilling tool, WELLEADER®. That broad array of capabilities gives COSL's customers many options from which they can match their specific requirements to an appropriately efficient solution by choosing different combinations of stand-alone, integrated multi-service packaged, and turnkey services-configurations. COSL is International Safety Management (ISM) and QHSE Management System (DNV) certified, and operates in full compliance with ISO9001, ISO 14001, and OHSAS18001 standards. COSL employees conscientiously adhere to those international QHSE standards and commit themselves to providing safe, first-class, high-efficiency, and valued services to COSL's domestic and international customers, alike. Mindful of the COSL motto, "Always Do Better", COSL's goal is to become a leader amongst the world's top-notch oilfield service companies: COSL unrelentingly strives to provide win-win scenarios to our shareholders, our customers, our partners, and to our valued employees.