In 1992, a Japanese news service reported that China was helping upgrade the base on Great Coco Island. Through the 1990s and 2000s, journalists and academics expanded the claims to China having a major
signals intelligence base, seemingly part of the so-called "
string of pearls", that monitored Indian activity. In 1998, George Fernandes also claimed China intended to build a major naval base on the islands; India was the only country to publicly "confirm" that the Chinese base existed. No supporting evidence appears through 2008. China and Burma denied the base's existence. In 1998, the
United States reported that there was no significant Chinese activity. In 2005, India retracted its position; this followed an Indian inspection of the islands at Burma's invitation. In 2014,
Air Marshal P. K. Roy, commander-in-chief of India's
Andaman and Nicobar Command, stated that "China has been developing a runway for civilian purposes. There are no reports of the presence of Chinese per se. The situation is not alarming". He added that there were only some civilian infrastructural developments, which were not a threat to India. Satellite images from
Maxar Technologies, taken in January 2023, revealed upgrades to Coco Island Airport. These included a longer 2,300-metre runway, a radar tower, and two new hangars. It appears that the installation is run by the
Tatmadaw or Myanmar military with no visible Chinese military presence. ==Flora and fauna==