Deposits of manganese ore are known in Borneo, at Maruda Bay.
Fig. 5.—Annual output of manganese ore in chief producing countries.
Fig. 6.—Percentage of manganese ore produced by chief producing countries.
It is reported that large deposits of high-grade ore have recently been discovered in Java.
Some statistics of the production of manganese are shown graphically in [figures 5] and [6].
DEVELOPMENTS AND CHANGES IN GEOGRAPHICAL DISTRIBUTION IN THE NEAR FUTURE
The known manganese resources of Russia, India, and Brazil are so large and readily available for exploitation and marketing that there is little prospect of their being displaced as the chief sources of the world’s supply for many years. Since the war began, in 1914, several important new districts have been discovered and brought to the producing stage, notably the Gold Coast of West Africa, western Costa Rica, and Java. Although the Javan deposits are reported to be large and may become an important factor in the world’s trade, all that is known concerning the other deposits does not hold out much hope that they can compete with the established sources.
There appears to be a fair chance that the equatorial belt as well as several other parts of the earth may yield additional important manganese deposits.