China’s demands exceed the legal claims established by UNCLOS, even though that treaty was ratified by Beijing. The PRC claims are based in a map named ‘Map of Chinese Islands in the South China Sea,’ originally issued in 1947 and therefore pre-dating the existence of the PRC and based on supposed historical rights dating back to the quasi-legendary Xia dynasty (c. 2070-1600 BC) – the very first dynasty to emerge in ancient China (Baumert and Melchior 2014). The PRC claim based on this ancient inheritance is for the entire area enclosed by the lines to be considered Chinese territorial waters. This runs counter to the 12 nautical miles conferred by UNCLOS rules on overlapping EEZ claims, territorial seas, and areas adjacent to several other countries in the region. It is worth noting that China is not the only actor in the SCS that is a signatory to UNCLOS and whose claims exceed what that document establishes as legal.
Is it common to have territorial claims that exceeds by the limitations established by the UNCLOS (United Nations Convention on the Law of the Sea)?
China is a signatory yet its territorial claims exceed the limitations established by UNCLOS. I was wondering how common it was for a country to do that either it is a signatory of UNCLOS or not. In my knowledge, Taiwan also have the same territorial claims surprisingly enough, but I was wondering if any other country also have similar claims that doesn't respect UNCLOS.