Carrie Lam Cheng Yuet-ngor is expected to lobby for support to expand the city's three landfills when she hosts a lunch today for leaders of the district councils where the tips are located.
The chief secretary has invited chairmen of councils in Tuen Mun, Yuen Long, Sai Kung and North District to join her for lunch at her home on The Peak.
Lam has been co-ordinating the administration's efforts over the past few months to rally support for the controversial move.
Tuen Mun chairman Lau Wong-fat said he would reiterate his call for the government to scrap its landfill expansion plans.
"Two months after the Legislative Council Finance Committee deferred the plan to extend the Tuen Mun landfill, the government has yet to come up with any concrete proposals to mitigate the negative environmental impact of landfills," he said.