Because it offered higher prices than other countries, and because the more direct and shorter trade route made trade with this country advantageous to the Japanese, the United States largely controlled the Japanese output of tungsten ore in 1918. This trade probably has been somewhat curtailed and will be further diminished through the erection of electric furnaces in Japan. The table following shows the tungsten ores imported for consumption into the United States in 1918, but gives a poor idea of the ores shipped from the countries of origin; Chinese ores lag three months and South American ores about two months. The table gives only the ores actually received during the year. Table 29 shows more nearly the ores shipped to the United States during the year. Chinese ores are treated as averaging 67.5 per cent. WO₃ and other ores 65 per cent. WO₃. TABLE 30.--TUNGSTEN-BEARING ORES IMPORTED INTO THE UNITED STATES IN 1918, BY COUNTRIES AS LISTED AT PORTS OF ENTRY, AND BY PROBABLE COUNTRIES OF ORIGIN -------------------------------++------------------------------------ || Probable origin and equivalent As listed at ports || in 60 per cent. WO₃ ------------+------+-----------++-----------------+------+----------- | Quan-| || | Quan-| | tity,| || | tity,| | short| || | short| Country | tons | Value ||Country | tons | Value ------------+------+-----------++-----------------+------+----------- Argentina | 536|$ 730,722||South America, | | Bolivia | 88| 122,357||including: | | | | ||Argentina | | | | ||Bolivia | | Canada | 56| 115,863||Chile | | | | ||Colombia | | Chile | 1,251| 1,209,864||Costa Rica | | | | ||Ecuador | | China | 2,384| 2,068,636||Panama | | | | ||Peru | | Colombia | 56| 65,124||Salvador | 4,181|$ 3,746,299 Costa Rica | 18| 19,081|| | | Ecuador | 6| 9,979||China, including:| | | | ||Hongkong, | | France | 29| 3,400||“Other British | | | | ||East Indies;” | | Hongkong | 3,595| 3,511,046||also Canada | 6,811| 5,708,616 | | || | | Japan | 1,361| 1,700,332||Japan | 1,474| 1,700,332 | | || | | Mexico | 264| 224,247||Mexico | 286| 224,247