If it helps,
Ask your local council for advise, Wigan council would rather you dump it safely for free than Flytip.
My external garage roof on house we bought 5 years ago was 10% asbestos sheet after a pal in the industry checked it for me.
Quoted near 1k for a ‘local reputable company’ to ‘over board over it/ not remove’, when asked how they would fix new roof they stupidly admitted they drilled through old sheets 🤷♂️
I researched and bought proper PPE/disposal kit according to Wigan council guide lines and did it myself for less than a quarter of contract cost.
Had to damp it down with hose before removal, double bag with 1500 grade vis queen sheet and gaffer tape so as it was air tight when bound also bought an industrial hoover from screw fix with plenty of bags. All disposed responsibly and free of charge at council yard.
Full hazmat suited Employee who supervised me disposing it in council skip informed me he couldn’t help me due to HnS whilst ignoring builders chucking Asda bags of the stuff in the skip,,,,,, he just shrugged his shoulders 😁