Founded Zhongya Electronic Automatization Equipment Co. in Yueqing city, majored in electronic real-time products manufacturing.

l  Year 1993,

Changed the name to Hualong Electronic Equipment Co., majored in electricity & mechanism integrative products manufacturing.

l  Year 1995,

Changed the name to Zhejiang Hualong Electronic Equipment Co., Ltd., hammered at electronic (multifunctional) electricity meters production.

l  Year 1996,

Founded Hangzhou Hualong Electronic Technology Co., Ltd.

l  Year 1999, be appraised

Ø   As a provincial key high-tech enterprise;

Ø   As a member of Chinese Electricity Measurement Industry Standard Committee.

l  Year 2000, achieved the ISO9002: 1994 Quality System Certificate.

l  Year 2001, be appraised as a Syndic Enterprise of China Instrument Industry Association.

l  Year 2002,

Ø  Leading products have been recommended in Chinese Electricity Alteration Project by China Economic Commerce Committee;

Ø  Be affirmed as the emphasis among instrument industry enterprises in Zhejiang province;

Ø  Successfully exploited the Electricity Environment Services & Management System, which was recommended as a trial in Shaoxing city by the government;

Ø  Successfully achieved the ISO9001: 2000 Quality Management System Certificate.

l  Year 2003,

Ø  Favourably passed the Provincial Inspection & Measurement System Authentication;

Ø  New manufacture base founded in Hangzhou Economic & Technological Development Zone;

Ø  Pax-Hualong R&D Center was entitled as the Provincial Technological Center.

l  Year 2004,

Ø  Co-founded an electronic designing research base and a post-doctor station together with Zhejiang University, all of which have provided a broad platform for the frontier technology development and application;

Ø  Be appraised as a national emphasis of key high-tech enterprises;

Ø  Products were appraised as Zhejiang Famous Brand;

Ø  Achieved ISO14000 Environmental Management System Certificate.

l  Year 2005,

Ø  Be listed on Forbes as one of a hundred potentials of China;

Ø  Successfully passed the National Inspection & Measurement Consummate System Authentication;

Ø  Successfully exploited the Standard Meter of class 0.2S, formed a new landmark on the development of Pax-Hualong.

l  Year 2006,

Ø  Product of Electronic prepayment meters successfully passed 3C Certificate;

Ø  Products achieved KEMA Certificate in Holland;

Ø  Products achieved PTB Certificate of Germany National Laboratory;

Ø  Formally made a strategic partnership with General Electric Company;

Ø  Achieved GB/T28001: 2001 Occupational Health and Safety Management System Certificate.

l  Year 2007,

Ø  Formally combined with Hisun Group, and changed the name to Hangzhou Pax-Hualong Electronic Technology Co., Ltd., as a wholly-owned subsidiary of Hi Sun Technologies (China) Ltd;

Ø  Successfully passed the European MID (Measuring Instruments Directive) Certification.

Ø  Obtained CMMI3 certificate (CMU/SEI CMMI for SW Maturity level 3) which highly granted Pax-hualong’s software design ability.