This study deals with the tuna industry in the Philippines, which is among the world's largest producers of tuna and tuna-like species. Centred around General Santos City, the "tuna capital of the Philippines", the tuna boom was spurred by the arrival, in the mid-1970s, of Japanese traders looking for new supplies of sashimi-grade yellowfin tuna.The study also analyzes the primary post-harvest facilities and processing industries as well as the interlinked financing and marketing sectors in the Philippines tuna industry. The discussion covers grade classification of the catch, pricing, selling operations, and international trade of tuna products. The study concludes with an overview of current initiatives to manage and develop the Philippines tuna industry.