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Lots, though China always seems to get theirs on time, the same can not be said for Russia.

Venezuela has struck oil-for-loans deals with China and Russia, and those countries together have lent Venezuela at least $50 billion in exchange for promised oil and fuel deliveries.

https://www.cnbc.com/2017/05/26/why-the-venezuelan-government-is-throwing-its-people-under-the-bus.html

I just learned something thats interesting:

Lastly, Venezuela won't default on its debt because "many high-ranking government officials and their associates are bondholders," said Moya-Ocampos of IHS, who noted it's "not too common" for high-ranking officials to own their country's debt.