Saudi Ambassador to Japan Dr. Abdulaziz bin Abdulsattar Turkistani attended here yesterday a luncheon held by Arab Ambassadors Council in honor of Japanese Minister of Economy, Trade and Industry Yukio Aidanu. Dr. Turkistan, who is also the Chairman of the Council's Economic Committee, delivered a speech on this occasion on the roles of the Council in the service of cooperation between Arab countries and Japan, calling for the increase of industrial investments in Arab countries.. He also talked about Japanese Economic Forum to be held in Japan at the end of this year.