It's not the performance data. It's a brute process, that works. Not a delicate in the lab test, then tried on a commercial scale
It's the large sum of money that is the barrier.
$300 million.
Politics too. US left them high and dry. There was financing from Europe ready, but USDA Loan guarantee desperately disqualified the loan because they didn't want to guarantee a non-US bank and send money abroad.
China is the last hope and USDA in not there to block.