It happens in the US too. The falsifying of records, some level of crony-type corruption, even mob involvement, in the nuke biz. Still, the standards are high. The plants have to operate well — that can’t be bribed away.
The price mark-up on equipment certified for nuclear system use is very high. Yet one piece of equipment, nuke certified, looks just like one not nuke certified. Creates a motive for fraud when the supplier thinks he can get away with it.
You can’t correct or improve this with regulation, btw. Having many regulators can actually differentially favor the corrupt. It takes a culture of high standards and strong engineering and ethics.