chairman ishii 2


Chairman and President

Mr. Ryohei Ishii has more than 15 years of experience in business development and project management in Japanese official development assistance (ODA)-funded projects in various parts of the world. A Civil Engineer by profession, Mr. Ishii is General Manager (GM) of the Business Promotion Department of Oriental Consultants Global (OCG) Japan. Aside from serving as PRIMEX Chairman, he is the GM of OCG’s offices in Sri Lanka and Thailand, Chief Executive Officer (CEO) of OCG East Africa and Latin America, and Director of OCG Thailand.



Vice President for Technical Services

Mr. Len Garces has more than 30 years of experience in fisheries and aquaculture research and development in the Southeast Asian region. Prior to joining PRIMEX in 2020, he led multi-country teams in the implementation of a regional development project particularly in the integration and implementation of an Ecosystems Approach to Fisheries Management (EAFM) within the national and regional level fisheries management plans.

From 1990 to 2015, Mr. Garces worked with an International Research Institute (WorldFish) and was involved with multi-disciplinary projects on coastal fisheries management, program implementation, monitoring and evaluation, and research on fisheries resources and habitat assessments. He earned his B.S. Fisheries degree from the University of the Philippines (UP) in 1984 and M.S. Marine Biology from the UP - Marine Science Institute in 1988. He has published and/or edited over 70 scientific articles, volumes, and books during the course of his career.



Vice President for Finance and Administration / ISO QA & Compliance Manager

Ms. Rowena SP Manalo is a Certified Public Accountant with more than 20 years of experience in accounting and finance and administration in both government and the private sectors in the transportation, information technology (IT), trading, power generation, and manufacturing in the Philippines, Bangladesh, Papua New Guinea (PNG), and the Marshall Islands.

In 2000, she first joined PRIMEX as Assistant Manager for Finance and Administration, where she handled accounting, bookkeeping, and taxes. She also managed the USAID-funded Coastal Resource Management Project, which covered six provinces (Cebu, Bohol, Palawan, Davao, General Santos, and Negros Oriental) in the Philippines from 2000-2004.