The applications relate to the island of Kyushu - one of three of Japan's islands the firm is exploring, along with Hokkaido and Honshu.
On Kyushu, the company's Ohra-Takamine project has been extended by 1,167 hectares to a total of 4,872 hectares, while the new Mizobe project comprises four applications covering 1,195 hectares.
Both lie in Kyushu's southern epithermal gold province which has produced over 11 million ounces of the yellow metal.
Mizobe lies 10 kilometers (km) east of the Ohra-Takamine project, where historic mining was focused on antimony (Sb) mineralization in the north-western part of the application area. Antimony is a typical pathfinder element for epithermal gold.
Japan Gold reckons feeder or vein structures below a high-level area of disseminated mineralization are valid exploration targets.
Meanwhile, the Ohra-Takamine project lies within the Hokusatsu-Kushikino mining district and covers five historic gold mines.
The second extension of ground relates to areas of hydrothermal alteration co-incident with geophysical and geochemical soil anomalies, some 2 to 3 km southeast of the historic Matsuno mine workings, the company said in its statement on Thursday.
Sanru project expansion
Earlier this month, Japan Gold said it had doubled its footprint at the Sanru project on the island of Hokkaido with 40 new claims.
The applications, which were approved by the Japanese government, totaled 12,842 hectares and covered prospective geology between the Sanru project and Irving Resources Inc's (CNSX:IRV) Omu project.
Japan Gold's Sanru project now covers a 20 km by 16 km under-explored area hosting five historic gold workings.
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