This mine could yield a certain amount of Star Pattern Gold and was a mine occupied by Dafeng State City. The man in the bronze mask's real name was Zhao Chengji, and he was one of the chiliarchs guarding the mine.
But to earn more money, Zhao Chengji took advantage of his official position to embezzle a portion of the Star Pattern Gold mined and then sold it to Su Changkong, who needed it. He embezzled some every month, very cautiously, fearing discovery.
But as they say, 'If you often walk by the river, how can your shoes not get wet?' Perhaps someone reported him, or there was an uneven distribution of the loot that caused an insider to reveal the matter. The higher-ups discovered it, thus leading to today's scene, with the Chief of Ten Thousand leading his cavalry, swarming in to catch the man in the bronze mask, Zhao Chengji, and others red-handed!