Prof. Tan, who is in charge of this project, said that in the past, only 200 tons of marketable jade could be extracted from 1,000 tons of raw material because of damage caused by dynamite blasting. Since less forceful satchel charges were used, the damage has been reduced.
負責這項計畫的譚立平教授指出，以前用火藥爆破損失太多，一千噸的玉礦，只能取用兩百噸；現在用電雷管引爆，可減少裂痕。