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Bureau of Mines / Minerals yearbook metals and minerals 1980
Year 1980, Volume 1 (1980)

Carlin, James F., Jr.
Tin,   pp. 827-841 ff. PDF (1.4 MB)


Page 839

TIN 
39,009. The Malaysia Mining Corp. (MMC), 71% owned by the Malaysian State
producer Pernas and 29% owned by Charter Consolidated Ltd., of the United
Kingdom, remained the largest tin mining group in the world and accounted
for about 25% of the country's total tin output. Tin mining was largely centered
in the States of Perak and Selangor. 
 Tin prospecting, both onshore and offshore, was recently intensified. Offshore
prospecting was begun in the State of Perak, with plans to extend it to the
States of Malacca and Negri Sembilan. Onshore, a comprehensive geochemical
survey financed partially by a grant from the Canadian International Development
Agency was commenced to locate new deposits in the central belt of peninsular
Malaysia. The Malaysian Geological Survey Department (MGSD) and the Malaysian
Mines Research Institute found new tin mineralization off Cape Rachard and
in several areas in the States of Perak, Selangor, Negri Sembilan, and Pahang.
 The MGSD established a Quarternary Geology Division to intensify investigation
into areas which could become new producers of tin. The MGSD also planned
to establish experimental mines as sources of information on costs of production,
methods, and safety measures. The first experimental mine was reported to
be a gravel pump operation in Perak. The MGSD had reportedly already undertaken
geological mapping covering 65% of peninsular Malaysia and produced more
than 11,000 copies of prospecting results which will be analyzed later. 
 The Malaysian Government, in cooperation with the Governments of Thailand
and Indonesia, began organizing a tin, research and development center in
Ipoh, Perak. The center's main objective was to conduct research in areas
ranging from mineral exploration to ingot production. 
 Conzinc Riotinto Sdn. Bhd., in a joint venture with the Pahang Tenggara
Development Authority, a State Government agency, was exploring for tin in
a 500square-mile area in Pahang. 
 Perangsang Riotinto Sdn. Bhd., a joint venture of Conzinc Riotinto and the
Selangor Economic Development Authority, and a bumiputra-(indigenous Malay)
owned tin mining company, Syarikat Lombong Setapak, operated a dredge costing
$10.2 million, currently the largest in Malaysia. The 
8~9 
dredge was located in the Dengkil area in the district of Kuala Langat, Selangor.
 In the State of Johore, large-scale tin mining was planned following the
discovery of substantial tin deposits in the Sungal Pelawan area in the district
of Kota ' Tinggi. Mining rights were awarded to a new joint venture company
known as Syarikat Pelombong Sebina Johore Sdn. Bhd., with the Johore State
Economic Development Corp., holding 51% and the Malaysia Mining Corp. holding
49%. 
 Southern Kinta Consolidated hired a dredge from Kampong Lanjut Tin Dredging
Bhd. for a period of 14 years. The dredge was to be used to work the Bernam
section north of Kuala Lumpur. 
 A new company, known as Timah Matang Sdn. Bhd., which was owned by Pernas
Mining, Kamunting Tin Dredging Ltd~, Saku Timah Sdn. Bhd., and state interests,
was formed to dredge a new site in Sel.angor Province. The tin grade of the
500-acre site was reported to be high. 
 After several years of discussion, agreement was reached for the development
of the major Kuala Langat tin dredging project in the State of Selangor.
The operating company was named Kuala Langat Mining and was 65% owned by
the State entity Kumpulan Perangsang Selangor Bhd. and 35% owned by the Malaysian
Mining Corp. In assessing the deposits of the area, which included the Brooklands
Estate, Selangor authorities termed the tin deposits as more inaccessible
and difficult to mine economically compared with other Malay regions and
may require substanial technological innovation. Initial output from the
Kuala Langat alluvial tin deposits was expected in 1985, at a rate of 2,300
tons of tin-concentrate annually, rising to 6,250 tons yearly by 1990. The
operation was considered likely to have a life of over 20 years. The firm's
immediate objective was to make a detailed survey of the 5,000 acres covered
by the 25-year mining lease. Meanwhile, work was proceeding on the design
of three major dredging units, each capable of reaching depths of up to 75
meters. 
 Malaysian tin concentrates were smelted by Datuk Keramat Smelting (DKS)
at Pen— ang and The Straits Trading Co. Ltd., at Butterworth. DKS
added
a sixth reverberatory furnace which increased capacity by 20%. The two smelters
had a combined annual capacity of 130,000 metric tons, but Malaysia produced
only about 61,000 tons of 


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