“Water Map” thematic volunteer service was initiated in 2018 by various volunteer teams within Tianqi, with serial thematic volunteering activities focusing on the theme of “protecting biodiversity”. This initiative aims to promote a green ethos that encourages reverence for nature and compassion for all living beings. From 2018 to 2023, each branch consistently organized one event annually, primarily engaging “parent-child” families, with a total participation exceeding 500 individuals.

In October 2023, Tianqi Public Welfare successfully launched “Our Environment Season – The Water Map” thematic volunteer service activities in Dujiangyan. Twenty volunteers from the Tianqi Chengdu branch, along with Chilean exchange students supported by the Tianqi Lithium-sponsored “New Energy Talents' Program”, visited the construction site of the Dujiangyan irrigation system to learn about its water management principles. They also conducted volunteer services aimed at promoting biodiversity conservation surrounding the hydraulic engineering site.