Japan's top government spokesperson, Minoru Kihara, acknowledged on Thursday that the Japanese Consulate in Chongqing has been without a consul for a month because China has delayed approval of a replacement.
Giant pandas, native to southwestern China, serve as an unofficial mascot. Beijing lends them to other countries as a sign of goodwill and as part of research and conservation programs.
The first pair of pandas, Kang Kang and Lan Lan, that China gifted to Japan arrived in Ueno on Oct. 28, 1972. It was one month after Japan's prime minister at the time, Kakuei Tanaka, and Chinese Premier Zhou Enlai signed a joint communique normalizing ties between the countries. Japan noted it "fully understands and respects" China's claim on Taiwan as "an inalienable part" of its territory.
China also gifted the first giant pandas around that time to other Western nations, including the United States, France, Britain and Germany.
China switched to leasing programs in the 1980s, with participating overseas zoos paying annual fees for habitat conservation or scientific research to benefit the species.