Brazil’s state oil producer Petrobras announced on Tuesday it has signed a 10-year leasing contract with Industrial and Commercial Bank of China (ICBC) Leasing.

The deal will raise $2 billion for the hugely indebted and scandal-plagued firm, and involves the sale and leaseback for the P-52 and P-57 deepwater platforms. The contract “is part of a financial strategy to diversify financing sources,” the announcement from Petrobras said.

Already creaking under the biggest debt of any oil company in the world, Petrobras has been planning and implementing swingeing budget cuts and trenchant reductions in investment as it tries to cope with the plunging oil price and the ramifications of the bribes-for-contracts scandal that has engulfed it for the past year.

In May three Chinese banks, China Development Bank, China Exim Bank and ICBC signed memorandums of understandings with Petrobras to offer a total of $10bn in financing.