The fire at AWM Recycling in Wednesbury, Walsall broke out in the early hours of 22 July and the West Midlands Ambulance Service reported that 70 to 80 Black Country residents have been evacuated.
A West Midlands Ambulance Service spokesman said: The fire has caused a thick plume of acrid black smoke to move into a nearby housing area.
So far there have not been any casualties from the fire itself, though a handful of residents have been checked over but thankfully no-one has required hospital treatment.
Two ambulances and the Hazardous Area Response Team attended the scene.
The West Midlands Fire Service reported that 15 fire engines including one hydraulic platform had been called out to attend the blaze. Sixteen fire-fighters with breathing apparatus were working to tackle the fire, with four main fire-fighting jets. Residents who have been evacuated due to the presence of asbestos are either staying with friends and family or have been taken to Darlington Police Station.
Although media reports have suggested the incident is being treated as suspicious, a spokesman for the West Midlands Police said: Its too early to establish a cause for the fire at this stage.