"So - according to Russian federal port records, the Chinese ship suspected of cutting the communications cables in the Baltic Sea was captained by a Russian citizen (one Stechentsev A.E.). Interestingly Yui Peng 3 was only transferred to its current owner in China earlier this month.
The ship is carrying goods/oil from Ust-Luga in Russia, to Port Said in Egypt. Same captain also comandeered URSUS ARCTOS also carrying goods from Ust-Luga to Egypt. Mapped using @SensusQ . "
What we don't know is if China knew they were going to try this beforehand or not. Flag of Convenience is common enough that we can't be sure. This could have been planned on the high level from China and we would never know - something conspiracy theorists will run with! If China knew they would probably give the crew a sever punishment, but unofficially it is for getting caught and not doing the act. Most likely though China didn't know before hand.