OREANDA-NEWS. National company KazMunayGas JSC (Astana), whose securities are officially listed on Kazakhstan Stock Exchange (KASE), has by an official letter informed KASE of "the eighth (in a row) partial buyback of 8 million pieces of indexed coupon bonds of the second issue (NIN:KZ2C0Y10D596) in accordance with the terms of the bond issue prospectus".