PetroChina Co Ltd.'s expanded refinery in Dushanzi (in Northwest China's Xinjiang region) will commence trial runs in August. Upon completion of construction, the plant will be China's largest refinery and petrochemical complex, with oil processing capacity of 10 mln tpa, and capacity to produce 1 mln tons of ethylene products. Construction of the ethylene facility is expected to be completed at the end of this year. A total investment outlay of 30 bln yuan has been earmarked for the project. Of this amount, 18.6 bln yuan has been invested since construction began in August 2005. Majority of the crude requirement for the year will be imported through a 1200 km cross-border pipeline from Atasu in Kazakhstan.