Core tip: According to various market sources, the market for tuna (bonito) in Bangkok, Thailand, continued to weaken in December, with the CFR price for whole bonito raw materials falling by $50/ton to $1,525/ton in the 48th week (December 24 to 30) compared to the previous week; the sluggishness in the Thai market has affected other global markets, with prices in Manta, Ecuador, also declining.