Anglo is seeking to turn around its fortunes with a drastic downsizing plan.

The company is set to report full-year results on Tuesday and update investors on its move to reduce by more than half the number of mines it owns and eventually lower employee numbers to 50 000 from 135 000.

Anglo lost 75% of its market value last year as investors questioned its survival given billions in debt and metal prices at six-year lows.

Moody’s, which lowered Anglo’s senior unsecured ratings to Ba3 from Baa3, said a target of raising $4bn by selling mines would be difficult to achieve.

“In this environment, executing disposals is going to be very, very difficult,” Philipp Lotter, managing director of EMEA corporate finance at Moody’s said by telephone. “This is not just a cyclical downturn, this a prolonged structural adjustment of the sector.”

Profit squeeze

The meltdown in commodity prices has prompted miners to accelerate spending cuts by optimising operations and cutting dividends as well as divesting some assets as they grapple with declining profits and large debt piles.

Glencore's [JSE:GLN] rating was cut to the lowest investment grade at Standard & Poor’s this month while BHP Billiton also had its rating cut on concern faltering growth in China may sap prices further.

Anglo said by e-mail that it had a “strong liquidity” position with about $15bn in cash and undrawn facilities with only $1.6bn of bonds maturing this year.

“The operational and financial impact of the credit rating downgrade is limited,” it said in the statement. “Anglo American is taking the necessary steps to further strengthen its balance sheet with the objective of returning to a solid investment grade credit rating.”

‘Further pressure’

Still, Moody’s said it could downgrade Anglo further unless it improves adjusted gross debt to earnings before interest, taxes, depreciation and amortisation, which is currently about 4.2 times.

“The rating would come under further pressure if that ratio was not brought below four relatively quickly,” Lotter said. “We need to assume a fairly bleak outlook.”

The downgrade “reflects a significant deterioration” in Anglo’s debt capacity and that Moody’s doesn’t expect it to deliver a substantial debt reduction in the next two years, according to the statement. There’s a risk that Anglo’s iron-ore business could deteriorate further, Moody’s said.

Moody’s put Anglo on review for a downgrade in December because of slumping commodity prices and its plans to reduce production.