Over 80 staff from StarHub braved the rain on Wednesday morning to plant 100 trees on Pulau Ubin.
A total of 23 species of trees including native species Aquilaria malaccensis and Macaranga gigantea, commonly known here as Eaglewood and Giant Mahang were planted.
The initiative is part of the company's corporate social responsibility initiative and comes under the National Parks Board (NParks) 1963 Commemorative Tree Planting programme. Each tree costs $200 and the money will go towards the Garden City Fund, a charity under the NParks that engages people in conservation, research and education. Last year, StarHub staff planted 30 trees in Sungei Buloh Wetlands Reserve.
Ms Caitlin Fua, StarHub's corporate communications assistant vice-president, said: "We only have one planet so it is vital that we all take responsibility to protect it."