BRIEF-Debswana to invest $500 mln to expand diamond mine

JOHANNESBURG, Nov 24 (Reuters) - Anglo American PLC: DE BEERS SAYS DEBSWANA TO INVEST $500 MILLION IN CAPITAL EXPENDITURE TO DE BEERS SAYS EXPANSION TO KEEP MINE PROFITABLE UNTIL AT LEAST 2025 DE BEERS SAYS EXPECTS EXPANSION TO HELP ACCESS A FURTHER 95