Specialty chemicals firm Orion S.A. has announced it is producing circular carbon black at its ISCC PLUS-certified plant in the eastern coastal city of Qingdao, China. The facility is making three grades — Ecorax Circular 200, 210 and 215 — from tyre pyrolysis oil (TPO). Ecorax 200 is a hard black suitable for tyres, while the 210 and 215 grades can be used for tyres…