BEIJING/TOKYO (Reuters) -Seafood trade is expected to be on the agenda on Wednesday as Japan’s foreign minister visits China, Japan’s largest export market for aquatic products until Beijing banned them in protest against Tokyo releasing treated radioactive wastewater into the ocean. In Takeshi Iwaya’s first visit to the Chinese capital since he became Japan’s foreign minister in October, he will hold talks with China’s Foreign Minister Wang Yi and meet other Chinese officials.