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    Sinohydro Engineering Bureau N0.4 Co. Ltd, (hereinafter called as Sinohydro Bureau N0. 4), was founded in October 1958, subsidiary to Sinohydro Group Limited. It is a large scale state-owned transnational enterprise, integrating construction, survey, engineering, design, manufacturing and transportation. In addition, the Company has the special-grade qualification of contracting water conservancy and hydroelectric engineering projects, first-grade qualification for earthwork projects, and steel structure projects, second-grade qualification for municipal utilities engineering construction, housing construction, tunnel construction and highway engineering projects; in addition, it is also an I&E enterprise.

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