| HWHonolulu Wood Treating LLC | Kapolei | HI | — | ◇ UNVERIFIED |
| HIHood Industries INC. | Coushatta | LA | — | ◇ UNVERIFIED |
| HIHood Industries, INC. | Metcalf | GA | — | ◇ UNVERIFIED |
| HIHood Industries Inc, Waynesboro | Waynesboro | MS | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products | Pine Bluff | AR | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products INC | Thomson | GA | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products, INC. | Halifax | NC | — | ◇ UNVERIFIED |
| HTHoover Treated Wood Products, INC. | Detroit | MI | — | ◇ UNVERIFIED |
| HRHumboldt Redwood Company LLC | Scotia | CA | — | ◇ UNVERIFIED |
| HFHunt Forest Products LLC | Pollock | LA | — | ◇ UNVERIFIED |
| HPHuxford Pole & Timber CO. INC. | Atmore | AL | — | ◇ UNVERIFIED |
| HIHydrolake INC | Mc Bain | MI | — | ◇ UNVERIFIED |
 Idaho Forest Group LLC - Bennett-grangeville | Grangeville | ID | — | ◇ UNVERIFIED |
| Idaho Forest Group LLC - Riley Creek-moyie Springs | Moyie Springs | ID | — | ◇ UNVERIFIED |
| ITIdaho Timer CORP of Illinois | Rochelle | IL | — | ◇ UNVERIFIED |
| IInterfor-eatonton | Eatonton | GA | — | ◇ UNVERIFIED |
| IGInterfor Gilchrist Division | Gilchrist | OR | — | ◇ UNVERIFIED |
| ILInterfor Longview Lumber Mill | Longview | WA | — | ◇ UNVERIFIED |
| IMInterfor Molalla | Molalla | OR | — | ◇ UNVERIFIED |
| IPInterfor Pacific | Port Angeles | WA | — | ◇ UNVERIFIED |
| IUInterfor U.s. INC. | Belk | AL | — | ◇ UNVERIFIED |
| IUInterfor U.s. INC. - Baxley Sawmill | Baxley | GA | — | ◇ UNVERIFIED |
| IUInterfor U.s. INC. - Swainsboro Sawmill | Swainsboro | GA | — | ◇ UNVERIFIED |
| IFInternational Forest Products | Houston | TX | — | ◇ UNVERIFIED |
| IPInternational Paper CO - Rome Linerboard Mill | Rome | GA | — | ◇ UNVERIFIED |
| IPInternational Paper Silverstreet Chip Mill | Silverstreet | SC | — | ◇ UNVERIFIED |
| IPInterstate Paper LLC Dba Dssmith Riceboro | Riceboro | GA | — | ◇ UNVERIFIED |
| IWIowa Wood Preservers INC | Oskaloosa | IA | — | ◇ UNVERIFIED |
| ISIp Springfield Paper Mill | Springfield | OR | — | ◇ UNVERIFIED |
| JLJasper Lumber Co/so Wood Chips - Green Tree Shavings | Jasper | AL | — | ◇ UNVERIFIED |
| JNJoe N Miles & Sons INC | Silver Creek | MS | — | ◇ UNVERIFIED |
| JAJohn a Biewer CO of Illinois | Seneca | IL | — | ◇ UNVERIFIED |
| KHKane Hardwood Collins Pine CO | Kane | PA | — | ◇ UNVERIFIED |
| KFKettle Falls Lumber | Kettle Falls | WA | — | ◇ UNVERIFIED |
| KFKeystone Fence Supply CO LLC | Schaefferstown | PA | — | ◇ UNVERIFIED |
| KKKith Kitchens-florence | Florence | AL | — | ◇ UNVERIFIED |
| KKKith Kitchens, LLC | Haleyville | AL | — | ◇ UNVERIFIED |
| KLKlausner Lumber One LLC | Live Oak | FL | — | ◇ UNVERIFIED |
| KRKnife River Linnton | Portland | OR | — | ◇ UNVERIFIED |
| KIKoppers, INC. | North Little Rock | AR | — | ◇ UNVERIFIED |
| KIKoppers, INC. | Guthrie | KY | — | ◇ UNVERIFIED |
| KIKoppers Incorporated Salem Plant | Salem | VA | — | ◇ UNVERIFIED |
| KIKoppers INC (susquehana Pa) | Montgomery | PA | — | ◇ UNVERIFIED |
| KIKoppers Industries | Somerville | TX | — | ◇ UNVERIFIED |
| KIKoppers Industries Incorporated | Florence | SC | — | ◇ UNVERIFIED |
| KUKoppers Utility & Industrial Products INC - Kennedy Plant | Kennedy | AL | — | ◇ UNVERIFIED |
| KWKountry Wood Products LLC | Nappanee | IN | — | ◇ UNVERIFIED |
| KLKronospan LLC - Ohatchee Log Yard | Ohatchee | AL | — | ◇ UNVERIFIED |
| LOLand O Lakes Wood Preserving CO | Tenstrike | MN | — | ◇ UNVERIFIED |
| LFLangdale Forest Prods CO | Sweetwater | TN | — | ◇ UNVERIFIED |
