Japanese aggressors had longed for the coal resource in Beipiao. The Guangdong army special agent and south Manchu railroad corporation investigated the coal resource and described it in the article “Beipiao present coal investigation” before the aggression.(Beipiao mining bureau history first volume page 454-462, Beipiao mine archives) . Japanese army attacked Rehe province in February after the 9.18 incident. On February 21 st eleven a.m., Zhaochuan army and Tianzhong army approached Beipiao. Chinese army (Tang yuhe) drew back without fight. On the   22th nine a.m. Zhaochuan army captured the Beipiao county with the airplane, tank, armored vehicle and rides by attacking the volunteers. From then on, Beipiao coal mine became the colony, the people was exploited by the Japanese imperialism.

  By capturing Beipiao, Japanese imperialism could expand the invasion. Moreover, they could plunder the coal resource. Days later, Shishongzhenyi and his 38 staff members who were recruited in Japan went to the Beipiao and took the office. Thereafter, they captured the coal industry power and restore the Guanshan  vertical shaft, which had stopped since the 9,18 emergence, and started the production. We can see how urgent they are!

  The Japanese took two steps. First, in March,1933, Guandong army ordered the Fengshan railroad bureau and the puppet government Industry Department take over the Beipiao coal mine, then they dismissed the Beipiao coal ore limited company, established the Beipiao coal ore revival committee that set up the Beipiao coal ore temporary business bureau. Second ,in August, in the name of the chief of staff Xiaofan,  Japanese  Guandong army special agent Detiandazuo announced the stock of Fengshan Railroad Bureau(actually it was belonged to Jingfeng railroad bureau) be false and invalid. He dismissed the temporary business bureau of Beipiao coal ore revival committee. According to the contract that Japan and Manchu agreed on the Japanese having the privilege on the road and ore, Japanese agent Daqizhongzuo from Guandong army drew the contract with puppet Manchu government that set up a point- company that belonged to Japanese Wangbiaopianchang and Manchuria Manchu coal ore corporation. Japanese Wangbiaoxizang was the manager (page 19-20). Thereafter, the original stock of the Manchu government and banks mostly were announced booty and confiscated. The other stock was forced to be sold at low price for the so- called reason that coal ore should be mined nationally.

  Japanese took the power of the coal, so they could plunder it. In  1934, they plundered 270000 tons coal and core from Guanshan shaft. They were not satisfied.  The  Japanese headquarter drew up the sketch of the second stage of economy construction of  Manchu, which stipulated the aim of the economy construction that was to meet the military need, and required the iron , coal, petroleum, electric power should be developed specially(puppet Manchu history, page 279). In   1936,Beipiao coal mine bureau investigated and digged the slanting shaft at Shanbao to set up new mine shaft and increase the output. In 1936 and 1937,  the  Shanbao development office and Taiji development were set up to explore the Shanbao and Taiji area. Two pairs of new shafts  were dug every year from 1937 to 1939.     Two pairs of shafts went into operation every year. The speed was quick. Six pairs shafts made productivity increase 1000000 tons. The time and the number that they were dug and went into operation are as  follows.  

  Shanbao first shaft 1937,9; 1939,3

  Taiji first shaft: 1937,10; 1939,4

  Guanshan second shaft: 1938,2; 1940,6

  Jicai second shaft: 1938,4; 1940,10

  Shanbao second shaft: 1939,2; 1941,4

  Taiji second shaft: 1939,4; 1941,12

(Beipiao coal ore bureau history first volume)

   The engineering  that connected the  900 feet shaft and 600 feet shaft in Quanshan began. By digging blind slant shaft respectively at the east and the west to the 900- feet shaft, they wanted to expand the scope to increase the productivity.

  The six pairs of new shafts and the measures such as lengthening the working time made the productivity amount to 400000 tons in 1938; 700000 tons in 1939; more than 1000000 tons in 1941. The Japanese had plundered 1238300 tons in Beipiao from 1933 June to 1945 August as follows.

  1933,67031 tons;  1934, 276275 tons. 1935,289644 tons. Someone  said it was 282000 tons; 1936,292987 tons, someone said it was 384000 tons; 1937,351773 tons; 1938,395747 tons; 1939,689824 tons; 1940, 1077559 tons; 1944, 1238300 tons; 1945, 90997 tons. Added up to 8422426 tons. Averaged 673794  tons a year. (Manchu iron joint stock company, northeast science and technology association report. The number was also quoted from industry department” affairs of Beipiao coal ore district labor” Shinaowa 12 th year.)

    The coal the Japanese plundered from Beipiao were mostly in the iron industry.  According to the  “coal formation in wartime” in Japan, during the four years, the coal supplied by the Baipiao to the Japan iron corporation and Shiaowa iron corporation amounted to 930000 tons , which were almost all the output in the Beipiao in these years.(see “Beipiao mine history, volume one page 20, Beipiao mine bureau archives hall”).

  In Beipiao, the Japanese invaders took the plundering type which caused gas explosion,  water percolation, ignition that brought disasters to the laborers and destroyed the coal resource. On  one hand, the Japanese exploited the thick coal layer, and abandoned the thin layer. The  transportation tunnel was arranged between the thick coal layers and thin coal layers group. They destroyed the resource. On the other hand, they took the house type or column type  which produced more coal at the low stoping rate (50%). Moreover, the types left more than 800000 tons coal underground with hidden dangers. At the beginning of the liberation, there had been gas explosion, water percolation, roof fall in this area. For example, the water percolation accident in the fourth section of Shanbao first shaft killed seven men.