BEIJING. September 28. KAZINFORM /Ruslan Suleimenov/ The share of the Chinese mining companies in development of the Kazakh minefields have already exceeded 25 per cent. Chairman of the Board of the SamrukKazyna National Welfare Fund JSC Kairat Kelimbetov has made it public within the framework of his working visit to China on September 24-25. At the meeting of the Kazakh delegation with the CNPC management the sides discussed the issues of energy cooperation in the oil and gas sphere and implementation of the joint projects. In particular, K.Kelimbetov noted positive dynamics of bilateral relations development in the oil and gas sphere. "The role of the Chinese companies in development of the Kazakh minefields is important, because their share have exceeded 25 per cent. Kazakhstan will continue to be a reliable partner of CNPC", K.Kelimbetov emphasized.