Singkuo didn't know much about Tang Xiu, but he was still able to investigate some things about his recent deeds through various channels. One thing he found out that made him dread Tang Xiu was his background—the Tang Family of Beijing in China. The intel he had obtained even indicated that Tang Xiu was someone responsible for the death of the Amur Tiger.
He knew who the Amur Tiger was as he had once visited this man. Although this man was not exactly a very powerful rival nor subordinate, his actual strength was nothing to scoff at either.
Thus, after he found out that Tang Xiu's purpose was the zodiac jade carving, he didn't hesitate to take it out. He even offered another precious mineral in his collection to him, intending to bury the hatchet that was against him.
"Just? Just what?" asked Singkuo with a smile, still training his eyes on Tang Xiu.