宫田泽一与香港有贸易往来,以往每次办理赴港签证都要几次前往中国驻日大使馆索取资料、填写表格。2000年5月份起,在香港贸易发展局的“贸发网”(tdctrade.com)上,可以直接取得100多个国家及地区的入境签证申请文件以及签证申请手续资料等。香港超级“贸发网”的开通,方便了往来于各国的生意人,也为宫田节约了很多时间。这个网页与香港入境事务处的网页相连,在网上除提供免 Gong Tianze a trade with Hong Kong, in the past each time to go to Hong Kong visa to the Chinese Embassy in Japan to obtain information, fill in the form. From May 2000 onwards, tdctrade.com of the Hong Kong Trade Development Council can directly obtain application documents for entry visas from more than 100 countries and regions as well as visa application procedures. The opening of the Hong Kong’s super “TUDA” has facilitated businessmen from all over the world and saved a lot of time for Miyata. This web page is linked to the Hong Kong Immigration Department web page, except online