By excellent technology and quality control ability, Hisense Air-conditioner Co., Ltd. has consolidated our position of "The expert of inverter" in China, In 1997, Hisense air-conditioner succeed in passing the ISO9001 quality management system certification. We established the quality management system of laboratory according to the international standard in 2000. In the same year we also passed the verification on-the-spot which has been approved by Chinese national laboratory of committee and got the approve certificate, it made our testing ability and the quality management level of the laboratory reached the international standard. In the year 2001 and 2004 we obtained the certificate for product exemption from quality surveillance inspection, and Chinese top brand; In 2002, Hisense passed the National 3C certification the first time and win the certificate NO. 001. For 2000 years Hisense win a big award which named "Australian energy saving star"; In the year 2003 and 2004, we got "the Chinese air-condition contribution award of energy saving" which is solely in China