LONMIN PLC

17 AUGUST 1999

LONMIN PLC HAS TODAY BEEN NOTIFIED IN ACCORDANCE WITH SECTIONS 198-202 (AS
AMENDED) OF THE COMPANIES ACT 1985 THAT THERE HAS BEEN A CHANGE OF

CIRCUMSTANCES AFFECTING THE INTERESTS WHICH MERCURY ASSET MANAGEMENT LIMITED
(MAM) HAS ALREADY DISCLOSED TO THE COMPANY ON 9 AUGUST 1999 AND THAT MAM NOW
HAS A DISCLOSABLE INTEREST IN 19,445,989 ORDINARY SHARES OF GBP1 EACH OF THE
COMPANY (REPRESENTING 12.19 PER CENT OF THE ISSUED SHARE CAPITAL) AS DETAILED
BELOW. SAVE WHERE SPECIFICALLY IDENTIFIED TO THE CONTRARY SUCH INTERESTS ARISE
BY REASON OF DISCRETIONARY INVESTMENT MANAGEMENT ARRANGEMENTS ENTERED INTO BY
MAM OR BY ITS AFFILIATES IN THE MERCURY ASSET MANAGEMENT GROUP. EACH SUCH
AFFILIATE IS INTERESTED IN THE RELEVANT SHARE CAPITAL TO THE EXTENT SET OUT
BELOW AND WHERE APPLICABLE THE NOTIFICATION CONSTITUTES DISCLOSURE ON BEHALF OF
SUCH AFFILIATES.

REGISTERED HOLDER                NO OF SHARES  BENEFICIAL INTERESTS (YES/NO)
(IF KNOWN)
NUTRACO NOMINEES LIMITED         13,187,052    NO
(DESIGNATED & UNDESIGNATED)
WIMCO NOMINEES LIMITED           165,000       YES
MERCURY LIFE NOMINEES LIMITED    246,628       YES
A/C LOGICA
BARCLAYS NOMINEES (LOMBARD       1,897,000     NO
STREET) LIMITED
NORTRUST NOMINEES LIMITED        958,000       NO
BANK OF NEW YORK (NOMINEES)      350,000       NO
LIMITED
CHASE NOMINEES LIMITED           606,500       NO
RBSTB NOMINEES LIMITED           363,500       NO
VIDACOS NOMINEES LIMITED         698,809       NO
OTHER NAMES                      973,000       NO
TOTAL                            19,445,989
END