Five local authorities have tendered for a business to take waste to the under-construction Parc Adfer EfW plant.
The £8.1m (€9.3m) tender, issued this week, runs from 1 April this year until 1 May 2024, indicating the plant could open not-long after.
The tender covers the five authorities, known as the North Wales Residual Waste Treatment Project (NWRWTP), which is made up of the county councils of Anglesey, Conwy, Denbighshire, Flintshire and Gwynedd.
According to the tender, which states it can be divided into five lots for each authority, the deal involves moving waste from a "range of transfer station sites across North Wales" to the EfW plant or other "designated delivery point(s)".
Potential bidders for the tender have only until midday on 18 March to bid for the work.
Clugston Construction started building work in April 2017 on the £180m (€206m) plant, which is owned by Wheelabrator Technologies. Wheelabrator is due to operate it under a 25-year public-private partnership (PPP), with the NWRWTP partnership.
ENDS previously reported the EfW Plant is due to be commissioned "no earlier" than 1 May this year. Once operational the plant is expected to process 200,000 tonnes per year of waste.