1959 November 27 [1959 September 9], “CAPITAL CONSTRUCTION IN THE COAL INDUSTRY”, in Weekly Report on Communist China[1], number 2, Washington, D.C.: Foreign Documents Division, Central Intelligence Agency, sourced from Peiping, Kung-jen Jih-pao, p 2, →OCLC, page 11[2]:
The shaft project No 7 of the Honan P'ing-ting-shan Colliery designed for an annual production capacity of 900,000 metric tons that went into production in August 1959 is more complex than the shaft No 3 of the Huai-nan Hsieh-chia-chi Colliery that went into production during the First Five Year Plan;[...]
At Ho-pi (Hopi) in northern Honan two modern shafts were under construction in 1957-8; but the coal from Ho-pi is expected to be of rather poor quality and so will be mixed with rich coal from P'ing-ting-shan (Pingtingshan) in central Honan for coke making.
