| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ASPN | Aspen Aerogels, Inc. | US | NYSE |
| CBT | Cabot Corporation | US | NYSE |
| HEI | Heico Corporation | US | NYSE |
| IBP | Installed Building Products, Inc. | US | NYSE |
| SCL | Stepan Company | US | NYSE |
| TGI | Triumph Group, Inc. | US | NYSE |
| CESX | CES Synergies, Inc | US | OTC |
| CODYY | Compagnie De Saint G | US | OTC |
| CSRLF | Csr Ltd | US | OTC |
| FYGGY | Fuyao Glass Industry Group CO Ltd ADR | US | OTC |
| INTK | Industrial Nanotech | US | OTC |
| IVDN | Innovative Designs | US | OTC |
| KGSPF | Kingspan Group Plc | US | OTC |
| KGSPY | Kingspan Group Plc ADR | US | OTC |
| RKWBF | Rockwool Intl Ser B | US | OTC |
| SDCVF | Vicat SA | US | OTC |
| SGLFF | SGL Carbon SE | US | OTC |
| VAQTF | VA Q Tec Ag | US | OTC |
| VCIGF | Vitreous Glass | US | OTC |
| WDGJY | John Wood Group Plc ADR | US | OTC |