南子岛，位于中国南海南沙群岛双子环礁南端，是双子群礁的主岛之一。岛体呈椭圆形，东北-西南走向，长约650米，南北宽约500米。1971年被菲律宾侵占，1975年南越又从菲律宾手里抢占，北越统一越南后继承占领至今。
2014年，越南开始在南子岛挖礁填海，修建港池，迄今已填海造岛约0.03平方千米。
2016年，南子岛上已经陆续修建了雷达天线、直升机起降场坪、码头、防波堤、足球场、灯塔等设施，共有各式建筑20余栋。
2017年，南子岛上设施没有变化，岛南端新建一片植被覆盖区。
2018年，岛北部新建雷达站一座；2020年，第二座雷达站建成。
Nanzi Island (Southwest Cay), which lies in the south of Shuangzi Reef (North Danger Reef) of Nansha Islands (Spratly Islands) in the South China Sea, was first occupied by Philippine in 1971, and later captured by South Vietnam in 1975. After the reunification of Vietnam in 1975, it has been a Vietnamese-occupied island up to today. As one of the main islands of Shuangzi Reef (North Danger Reef), it is oval in shape, about 650m in length, 500m in width, and lies from the northeast to southwest.
鸿庥岛，位于中国南沙群岛郑和群礁南部边缘，呈长条形，东西走向，长约690米，宽约190米。1973年被南越侵占，北越统一越南后占领至今。
2006年，鸿庥岛上已经陆续修建了直升机起降坪、码头、营房等设施，共有各式建筑20余栋。
2014年，越南在鸿庥岛新建了指挥楼、营房、灯塔等设施。
2016年，鸿庥岛西端新建一座雷达天线。
2018年，雷达天线升级为带球形天线罩的捷克P-18M型数字化雷达。
2020年，新建第二座雷达站，雷达系统进一步升级。
Hongxiu Island (Namyit Island) lies in the south of Zhenghe Qunjiao (Tizard Bank) of Nansha Islands (Spratly Islands). With 690m length and 190m width, it is long in shape and was occupied by South Vietnam in 1973. After the reunification of Vietnam in 1975, it has been a Vietnamese-occupied island up to today.
By 2006, there had been around 20 buildings and some facilities, such as helicopter landing pad, harbor and barracks.
敦谦沙洲，位于中国南海南沙群岛北部中央郑和群礁中部，呈椭圆形，西北-东南走向，长约400米，宽约200米。1974年被南越侵占，北越统一越南后占领至今。
2012年，越南已经在敦谦沙洲上陆续修建了礁堡、灯塔、营房等设施，共有各式建筑10余栋。
2015年，越南在敦谦沙洲进行大面积挖礁填海的总面积已经达到了约0.037平方千米，并新建了码头。
2016年，敦谦沙洲东端新建直升机起降坪，南半部新增各式建筑10余处。
2020年，南端发现疑似导弹发射车伪装棚。
Dunqian Shazhou (Sand Cay), which lies in the northwest of Zhenghe Qunjiao (Tizard Bank) of Nansha Islands (Spratly Islands), was invaded by South Vietnam in 1974 After the reunification of Vietnam in 1975, it has been a Vietnamese-occupied island up to today. It is oval in shape, about 400m in length, 200m in width, and lies from the northwest to southeast.
By 2012, 10 buildings of various kinds had been built, including facilities such as a blockhouse, a lighthouse, and barracks. etc.
毕生礁，位于中国南海南沙群岛安波沙洲东北、石盘仔暗礁南侧，呈长条形，东北-西南走向，长约9200米，宽约2000米。1978年被越南侵占。
2016年，越南开始在毕生礁挖礁填海，迄今已填海造岛约0.024平方千米。已经陆续修建了雷达天线、直升机起降场坪、码头、碉楼等设施，共有各式建筑10余栋。
Bisheng Jiao (Pearson Reef), which lies to the northwest of Anbo Shazhou(Amboyna Cay) of Nansha Islands (Spratly Islands) and to the south of Shipanzai Jiao (Maralie Reef), was invaded by Vietnam in 1978 and has been a Vietnamese-occupied island up to today. It is long in shape, about 9200m in length, 200m in width, and lies from the northeast to southwest.
Since 2016, Vietnam has started the reclamation of sea which has covered an area of 0.024km2.
景宏岛，位于中国南海南沙群岛九章群礁西北端，呈椭圆形，东北-西南走向，长约520米，宽约500米。1973年被南越侵占，北越统一越南后继续占领至今。
2014年，越南开始在景宏岛挖礁填海，修建港池，迄今已填海造岛约0.11平方千米。
2016-2018年，景宏岛上已经陆续修建了港池、码头、直升机起降场坪、灯塔等设施，共有各式建筑10余栋。
2020年，越南增强了岛上的工事，新建了数座碉堡和导弹发射架（疑似）。
Jinghong Island (Sin Cowe Island), which lies in the northwest of Jiuzhang Qunjiao (Union Banks and Reef) of Nansha Islands (Spratly Islands), was occupied by Vietnam in 1973. After the reunification of Vietnam in 1975, it has been a Vietnamese-occupied island up to today. It is oval in shape, about 650m in length, 500m in width, and lies from the northeast to southwest.
Since 2014, Vietnam has started the reclamation of sea and construction of a harbor basin, which has covered an area of 0.11km2.
