JAPAN and SAN FRANCISCO – One of Japan’s largest advertising networks has launched a San Francisco-based subsidiary to serve the adult entertainment industry.

Mint is the first global product launched by Japan’s i-mobile Co. Ltd. According to a spokesperson, the system “has uniquely important features, like disclosing all publishers for advertisers, automatically optimizing the CPC rate to efficiently allocate budgets and providing re-targeting functions to maximize ad performance and revenues.”

One of the features about which the company is most excited is a new pop-under format.

“As everyone knows, the format sees great performance for advertisers and great revenue for webmasters,” the spokesperson said. “We were encouraged to develop the format by a lot of clients and finally released it.

“Now we are especially looking for webmasters to join Mint as a new publisher and make money using the format,” he continued. “So, we have started a hot deal for them.”

The “hot deal” is this: Through the end of August, webmasters who initiate pop-under ads for their U.S. and Japanese traffic on one site will receive a fixed CPM rate of $2. Webmasters who enable the ads on two or more sites will receive a CPM rate of $3.

More information is available on Mint’s website, by email or via Skype (mint_i-movad).