SHANGHAI, Oct 22 (Reuters) - The main unit of China Evergrande Group said on Friday that it had not made substantial progress in disposing of the developer’s assets. Hengda Real Estate Group Co said China Evergrande cannot guarantee it will be able to continue to meet financial obligations under contracts, in a statement posted on the website of the Shenzhen Stock Exchange that echoed one from Evergrande earlier in the week. If Evergrande cannot meet obligations and cannot reach alternative plans with creditors, it would have a significant negative impact on its business, prospects and financial position, the statement said. Reporting by Andrew Galbraith and Winni Zhou; editing by John Stonestreet