C267 Where Does the Black Swamp Oil Come From?

"I'm lost here; better if you explain it," Bao Guo said, eyeing the pie charts on several sheets and the heap of technical jargon, all in English, which was Greek to him.

Zhang Xin chuckled, taking the papers. "Let's keep it simple. The oil from the Cyanwood Tree is actually edible, somewhat like palm oil, with a flash point of 450 degrees