Zhuoyue New Energy have a offer of industrial refinded glycerin:
(deails by whats/wechat app +8313850019071)
Glycerol content:97%(>95%)
Color(APHA):35 max
Thermal stability: Good
Saponification equivalent: 3 max
Acidity-alkalinity(mmol/100g):0.3max
Density: 1.26