Group 1 - The fifth "Light Rail Ding Ding Fun" free ride day was launched by Huatai International on October 6, allowing unlimited free rides on light rail and trams across Hong Kong Island to Northwest New Territories [1][2] - The event aims to benefit more citizens and promote community connections, with the theme "Benefit Heart Huatai, Co-create Bright 'Teen'" [2][3] - Huatai International has been offering this free ride day as a gift to Hong Kong citizens since 2021, with this year's event introducing a new free light rail ride plan [2][3] Group 2 - The event was supported by Hong Kong's MTR Corporation and Hong Kong Tramways, highlighting the importance of these transportation modes in the daily lives of residents and tourists [2] - The MTR Corporation expressed its honor in participating, aiming to facilitate easy exploration of local areas and support youth development [2] - Hong Kong Tramways emphasized its long-standing service to the community over 120 years and its commitment to social welfare and sustainable urban development [2]