Chinese marine research vessel Xiang Yang Hong 3 reached Maldivian waters on 12 July reportedly "for rotation of personnel and replenishment."

Chinese marine research vessel Xiang Yang Hong 3 reached Maldivian waters on 25 April "for rotation of personnel and replenishment."

Chinese marine research vessel Xiang Yang Hong 3 was in Maldivian waters on 22 February on a port call "for rotation of personnel and replenishment."

Three Chinese naval vessels--destroyer, Chang Chun, frigate, Jing Zhou and supply ship, Shao Hu--were in Maldives for joint exercise with the Maldivian National Defence Force (MNDF) in August.

Chinese Research Vessel Xiang Yang Hong 09 was docked in Male for the first time in February in an effort to strengthen marine cooperation between Maldives and China.

Chinese Research Vessel Xiang Yang Hong 01 was in Male open to the public in November. The vessel, reportedly, was on a mission to conduct surveys in the southern part of the Eastern Indian Ocean, including physical oceanography, marine chemistry and marine optics.

China’s Shi Yan 6 docked dock at the port of Colombo for replenishment from October 25 to 28.

PLAN's Shi Yan 1 Scientific Research Vessel reached Sri Lanka on 11 April 2020.

Chinese Research and Survey Vessel Yuan Wang 5 docked at Hambantota Port on 16 August for a six-day replenishment stop, departing on August 22.

China's Shi Yan 6 was in Sri Lanka from 20 April 2022 for 10 days.

China's Hai CE 3301 Scientific Research Vessel was in Sri Lanka from 5 January 2022 for 11 days.

China's Hai CE 3301 Scientific Research Vessel was in Sri Lanka from 8 December 2021 for 14 days.

China's Hai CE 3301 Scientific Research Vessel was in Sri Lanka on 8 January 2021

PLAN's Xiang Yang Hong 19 Scientific Research Vessel was in Sri Lanka for nine days from 11 February 2020.

PLAN's Xiang Yang Hong 6 Scientific Research Vessel was in Sri Lanka from 27 December 2019 to 17 January 2020.

China's Xiang Yang Hong 3 came to Sri Lanka on 19 December 2019 and remained in the Sri Lankan waters until 5 January 2020.

China's Shi Yan 3 Scientific Research vessel reached Sri Lanka on 15 May 2020 and remained in there for seven days.

A PLAN vessel, the Zhu Ke Zhen, an Integrated Research Vessel, was in Sri Lanka for five days from 14 November.

A PLAN vessel Qiang Weichang, Naval Integrated Research Vessel reached Sri Lanka on 8 August 2019 and remained in Sri Lankan waters for three days.

China's Shi Yan 3 Scientific Research Vessel first reached Sri Lanka on 20 April and remained there for four days.

China's Xiang Yang Hong 18 reached Sri Lanka on 6 January and remained in Sri Lankan waters for four days.

In October, Chinese navy ship Hai Yangdao came to Colombo for four days on a goodwill visit.

In August 2017, a Chinese naval formation consisting of the destroyer Changchun, guided-missile frigate Jingzhou and supply vessel Chaohu conducted a live-fire drill in the waters of the western Indian Ocean.

PLA Navy vessel Qian Sanqiang visited Sri Lanka on the 2 Feburary and remained in Sri Lankan waters for four days.

On 13 December 2017, PLAN vessel, Xiang Yang Hong 3 visited Sri Lanka and remained in Colombo and Trincomalee for a period of 18 days.

The Chinese research vessesl, Shiyan 1, was docked at the Port of Colombo from 18-22 April.

China took over Hambantota Port on a 99-year lease – the agreement was signed in July 2017 and came into effect in December 2017.

In June, the PLA Navy task force (Changchun, Jingzhou, Chaohu) arrived in Colombo, initially for a goodwill visit but pivoted to provide disaster relief following severe flooding.

The Chinese PLA Navy ship "865" arrived at the Port of Colombo for a scheduled goodwill visit from February 26, 2016 to February 28.

The Chinese naval hospital ship Peace Ark arrived in Colombo on August 6, for a four-day visit to provide medical services and conduct exchanges, marking its first visit to the country.