On the basis of 600MW supercritical boiler, HBC took the lead in China to develop 350MW supercritical parameter boiler with full proprietary intellectual property right to meet the user demand. The first such boiler used in Ruijin Power Plant #1 and 2 came into commercial operation in Dec 2008 respectively. The boiler burning lignite, bitumite and lean coal has been developed at present. We have signed supply contract for almost 20 such boilers. The successful operation of such boiler marks that HBC has fully mastered the core technology for supercritical boiler, and moved into new stage of optimized improvement and self-innovation from earlier technology introduction, digestion and absorption.