Business data analysis services; cost price analysis services; business consulting services; business project management; business management consultancy; administrative processing of purchase orders; business management and organization consultancy; business efficiency expert services; commercial and industrial management assistance; import-export agency services; invoicing; negotiation and conclusion of commercial transactions for third parties; marketing; outsourced administrative management for companies, namely, outsource service provider in the field of business management; outsourcing services; procurement services for others, namely, procurement of materials and services for oilwell drilling and production

Machinery installation, maintenance and repair; oil drilling; gas drilling; construction of structures for the production of crude oil; construction of structures for the storage of crude oil; installation of oil production apparatus; construction of structures for the production of natural gas; construction of structures for the storage of natural gas; construction of structures for the transportation of natural gas; drilling of wells; drilling of deep oil or gas-wells; electric appliance installation and repair; factory construction; pipeline construction and maintenance; rebuilding engines used for oilwell drilling and production that have been worn or partially destroyed; rebuilding marine engines that have been worn or partially destroyed; shipbuilding; underwater construction; underwater repair; warehouse construction and repair

Oil prospecting; oil-field surveys; engineering consultancy; technological consultancy in the field of oil exploration for the management of assets used for oilwell drilling and production; research consultancy in the field of energy; scientific research and development; technological research in the field of engineering; industrial analysis and research services, namely, analysis of operational processes of industrial machinery; industrial design; design consultancy in the field of auxiliary design for oil and gas industrial machines; design engineering; computer software design; engineering; mechanical research; outsource service providers in the field of information technology; quality control