- Ecosphera
- cenosphere, microsphere, cenospheres, alumosilicate microspheres, fly ash.
- Address:Vibornaya 201/1 Novosibirsk, Novosibirsk
- Samruk JSC
- fly ash, microsphere, cenosphere, micro.
- Address:Kalwaryjska 69/9 Krakow, Lesser Poland
- Guomei Fu Import and Export Co., Limited
- cenosphere, microsphere, fly ash.
- Address:No. 76 Renmin Road, Congtai District Handan Hebei China