2020 ESG:
英: https://www1.hkexnews.hk/listedco/listconews/sehk/2021/0716/2021071601042.pdf Download 
中: https://www1.hkexnews.hk/listedco/listconews/sehk/2021/0716/2021071601043_c.pdf Download

2019 ESG:
英: https://www1.hkexnews.hk/listedco/listconews/sehk/2020/0729/2020072900716.pdf Download
中: https://www1.hkexnews.hk/listedco/listconews/sehk/2020/0729/2020072900717_c.pdf Download

2018 ESG:
英: https://www1.hkexnews.hk/listedco/listconews/sehk/2019/0910/ltn20190910543.pdf Download
中: https://www1.hkexnews.hk/listedco/listconews/sehk/2019/0910/ltn20190910544_c.pdf Download

2017 ESG:
英: https://www1.hkexnews.hk/listedco/listconews/sehk/2018/0329/ltn201803292501.pdf Download
中: https://www1.hkexnews.hk/listedco/listconews/sehk/2018/0329/ltn201803292502_c.pdf Download

2016 ESG:
英: https://www1.hkexnews.hk/listedco/listconews/sehk/2017/0622/ltn20170622708.pdf Download
中: https://www1.hkexnews.hk/listedco/listconews/sehk/2017/0622/ltn20170622709_c.pdf Download