In a quick read, I don't see anything in there that could be qualified as "bribe to the leadership". The Chinese finance a lot of countries to ingratiate themselves, but outright bribes to this or that person is another thing. It might well be happening, but stating it with certainty when there is no proof just comes off as a conspiracy theory.
>[Argentine journalist Roberto Maturana] says that in Argentina, these arrangements are facilitated by corrupt officials at the government sub-department of fishing, responsible for granting fishing licenses. ‘Often officials will issue an Argentine license to two different Chinese boats. So whilst one is in port, the other will be out fishing’.
https://theglobalamericans.org/2021/02/new-directions-in-the...