Investor Presentaiton
ING
Gold Mining in Japan
IRV:CNX
Since the beginning of the Edo period (1601), over 20
Moz of gold have been produced from Japanese gold
mines...the top five being Hishikari, Sado, Konomai,
Kushikino and Taio. All of these mines exploit high-
grade epithermal deposits.
Hishikari mine (Sumitomo Metal Mining Co. Ltd.),
Japan's largest gold mine, has produced over 7 Moz Au
(as of March, 2015) since its discovery in 1981. Current
head grades are around 30 gpt Au. Considerable
reserves and resources remain.
Japan's second largest gold mine, Sado Kinzan
(Mitsubishi Materials Corporation), produced 2.51 Moz
Au and 74 Moz Ag over a continuous mine life of 388
years beginning in 1601. Grades averaged 5.2 gpt Au
and 153 gpt Ag.
Konomai mine (Sumitomo Metal Mining Co. Ltd.),
Japan's third largest gold mine, produced 2.35 Moz Au
and 38.6 Moz Ag between its discovery in 1915 and
mine closure in 1973.
Kyushu
Shikoku
Hokkaido
Honshu
Tokyo
N
800 km
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