DUIKER/TWEEFONTEIN/LONMIN PROFIT WARNING AND FURTHER JOINT CAUTIONARY

DUIKER MINING LIMITED
(REGISTRATION NUMBER 05/22288/06)
("DUIKER")
TWEEFONTEIN UNITED COLLIERIES LIMITED
(REGISTRATION NUMBER 01/05279/06)
("TWEEFONTEIN")
LONMIN PLC
(REGISTRATION NUMBER 69/00015/10)
("LONMIN")

PROFIT WARNING AND FURTHER JOINT CAUTIONARY ANNOUNCEMENT
1. PROFIT WARNING - DUIKER

DUIKER STATED IN ITS CONSOLIDATED RESULTS ANNOUNCEMENT FOR THE YEAR ENDED 30
SEPTEMBER 1999 THAT IT IS HIGHLY GEARED TOWARDS EXPORTS AND  DESPITE THE
OUTLOOK FOR EXPORT PRICES BEING SOMEWHAT MORE OPTIMISTIC IN THE MEDIUM TO LONG
TERM, THE GROUP'S EARNINGS ARE EXPECTED TO BE LOWER FOR THE FORTHCOMING YEAR.
EXPORT PRICES HAVE NOT IMPROVED TO THE EXTENT ANTICIPATED AND AS A RESULT
SHAREHOLDERS ARE ADVISED THAT DUIKER IS EXPECTED TO MAKE A LOSS, AFTER INTEREST
AND AMORTISATION, FOR THE HALF-YEAR TO 31 MARCH 2000.
2. PROFIT WARNING - TWEEFONTEIN

TWEEFONTEIN'S ONLY ASSET IS AN INVESTMENT HOLDING IN DUIKER, AND THE ATTENTION
OF SHAREHOLDERS OF TWEEFONTEIN IS DRAWN TO THE ABOVE PROFIT WARNING IN RESPECT
OF DUIKER.
3. FURTHER JOINT CAUTIONARY ANNOUNCEMENT

FURTHER TO THE JOINT CAUTIONARY ANNOUNCEMENT PUBLISHED IN THE PRESS ON 31
JANUARY 2000, LONMIN, DUIKER, AND TWEEFONTEIN SHAREHOLDERS ARE ADVISED THAT
LONMIN IS STILL CONSIDERING VARIOUS STRATEGIC ALTERNATIVES IN RESPECT OF ITS
CONTROLLING INTEREST IN DUIKER AND TWEEFONTEIN. SHAREHOLDERS ARE ACCORDINGLY
ADVISED TO CONTINUE EXERCISING CAUTION WHEN DEALING IN LONMIN, DUIKER AND
TWEEFONTEIN SHARES UNTIL A FURTHER ANNOUNCEMENT IS MADE.
JOHANNESBURG
11 FEBRUARY 2000