June 21 (Reuters) - The following corporate finance-related stories were reported by media on Friday:
* Rockwood Holdings Inc has cancelled a combined auction of its titanium dioxide and performance additives units after failing to attract the offers it was hoping for, four people familiar with the matter said on Thursday.
* Wal-Mart Stores Inc is considering bids from retirement plan managers to run its $15.6 billion 401(k) programme, which has been administered by Bank of America’s Merrill Lynch unit for 15 years, according to three sources familiar with the situation.
* Private equity firm Leonard Green & Partners LP is nearing a deal to buy United States Infrastructure Corporation (USIC), two people familiar with the matter said this week, in a deal that could be valued at between $700 million and $800 million.
* Casino owner Macau Legend Development Ltd postponed an up to $786 million initial public offering in Hong Kong, sources said on Friday, the latest casualty of volatile global markets.