Petro-chemical (DPCL) was established in November 1991.
Our major business was to market Prolong Anti-friction
Metal Treatment (AFMT) additives in Hong Kong. In 1993,
Dunwell took over the lubricant refinery and blending
facility in Yuen Long Industrial Estate with total area
of 100,000 sq.ft. and our production capacity reached
2000 tons per month. Products became more diversified;
including hydraulic oil, motor oil, compressor oil,
slide-way oil, metal cutting oil etc. Dunwell was also
accredited for ISO 14001 and ISO 9001 : 2002 certificates
in 1999 and 2003 respectively. In additional , Dunwell
lube products was Q-mark certified and customer satisfaction
can be assured. Dunwell Petro-chemical Co., Ltd. was
also appointed as major lube oil supplier for HKSAR
government from 2002 till 2006.