Short answers, pulled from the story.
JETRO is an Independent Administrative Institution of the Japanese government dedicated to trade and investment promotion. It was established in its current form on the 1st of October 2003, though it originated as a nonprofit corporation in Osaka in February 1952. The government provides more than half of its annual operating budget.
JETRO's main office is located in the Ark Mori Building at 12-32, Akasaka 1-chome, Minato-ku, Tokyo. It also maintains a major office in Osaka as well as forty-eight regional offices across Japan.
As of January 2020, JETRO maintained seventy-four overseas offices in fifty-four countries, in addition to forty-eight regional offices inside Japan. Its total staff at that time was 1,730 people, split between 998 domestic and 732 overseas employees.
JETRO offers market intelligence, business development support, business events, and current information on Japanese laws and regulations for foreign companies seeking to enter or expand in Japan. It also supports import promotion through publications, trade fairs, seminars, and trade missions.
JETRO became an Independent Administrative Institution on the 1st of October 2003, under the Japan External Trade Organization Incorporated Administrative Agency Act, which was enacted on the 13th of December 2002 as Law No. 172.
JETRO was founded in 1952 solely to promote Japanese exports. As Japanese exporters gained footing in world markets and Japan's trade balance shifted from deficit to surplus, the organization expanded to include import promotion, foreign investment attraction, small-business liaison, and support for foreign companies entering Japan.