MR MA CONGBO WEY BE THE PRESIDENT OF YURONG COMMERCE AND TRADE LIMITED COMPANY IN SHANGDONG PROVINCE,SOUTH OF BEJING AND WEY ALSO BE THE OWNER OF CHINESE GYPSUM MINE WEY COLLAPSED ON FRIDAY AND KILLED ONE WORKER AND TRAPPED REMAINING WORKERS DON KILLED HIMSELF ON SUNDAY.MA WEY DEY WORK WITH OTHER RESCUE WORKERS DROWNING HIMSELF BY LEAPING INTO WELL AT 2 A.M.WETIN CAUSED COLLAPSE IS UNKNOWING,4 WORKERS ESCAPE AND 7 WAS RESCUED ON SUNDAY WHILE 17 STILL DEY TRAPPED