The EU has already frozen non-farm payments to Agrofert — one of the largest Czech recipients of EU aid — and the Czech supreme state prosecutor is looking into whether criminal charges should be brought.
Brussels is likely to levy fines and demand that past aid is repaid, meaning that either the state or Agrofert would have to bear the cost.
Trump maintains the support of the religious right and conservatives despite allegations of sexual harassment and adultery. Babis launched his ANO party in 2011 appealing to popular anger over a political system rife with corruption, but persistent accusations of fraud and graft have not dented support.
Mainstream pro-EU parties on the centre-left and centre-right took a battering in Czech elections for the European Parliament but the main beneficiaries were "anti-system" centrist parties rather than the far right.
Prime Minister Andrej Babis' ruling ANO party came top, gaining two seats for a total of six of the country's 21 seats and 21.18% of the vote.
Babis' pragmatic - or hypocritical - approach to the EU looks likely to serve him well when Czechs vote May 24-25. Polls suggest his party will come first with about 25 per cent of the votes.
This result is all the more remarkable, given that this essentially one-man party has no real ideology, or content in terms of policies.
Prime Minister Viorica Dancila stated on Friday that the Czech Republic ranks 10th in the ranking of foreign investors in Romania, with over 1,000 companies in the country, adding that, within her meeting with Czech Prime Minister Andrej Babis, she pleaded for "a substantial boost of the dialogue" between Romania and the Czech Republic at all levels.