Business Scope: Municipal public works general contracting class I, foundation and foundation engineering professional contracting class I, water conservancy and hydropower engineering construction general contracting class I, highway engineering construction general contracting class II (the above are operated according to the scope of the qualification certificate); comprehensive engineering survey class A; well engineering; geological disaster prevention and control engineering construction; contracting overseas foundation and foundation engineering and domestic international bidding projects; exporting equipment and materials required for the above-mentioned overseas projects; dispatching laborers required for the implementation of the above-mentioned overseas projects. Self-operated and agency types of import and export business of various commodities and technologies, except for commodities that are restricted to be operated by companies or prohibited from import and export by the state (the catalogue of import and export commodities is not attached).It is engaged in the processing of imported materials and the "three-to-one-supplement" business, counter-trade and entrepot trade; general contracting of housing construction engineering construction level II; geological drilling; hydrogeology, engineering geology, environmental geology survey; construction mechanical and electrical installation professional contracting.