Greensill Capital is still owed about $800 million from GFG Alliance, its biggest client, administrators Grant Thornton have revealed in its latest report on the costs incurred by the supply chain finance group’s sudden collapse.

Greensill Capital UK (GCUK), the main operating entity of the financial services firm that went bust in early March, operated 17 separate programmes involving the global steel group, Grant Thornton said in a report to creditors.