By Liz Lee and Sakura Murakami BEIJING/TOKYO (Reuters) -Talks on seafood trade are 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 placed a blanket ban in protest against Tokyo releasing treated radioactive wastewater into the ocean.

Japanese Foreign Minister Takeshi Iwaya has met with top Chinese leaders during his visit to Beijing, the first since the heads of the two countries met at a summit in Peru last month

China and Japan agreed Wednesday to set up talks on often contentious security issues as they seek to improve a relationship riven in recent years by a range of issues, from territorial disputes to the discharge of water from Japan's tsunami-wrecked nuclear power plant.