| Item | Source |
|---|
| Plywood, steel studs, framing, vinyl, carpet, paint, skirting, MDF, conduit, steel boxes | Damascus local |
| Mineral wool, gypsum board | KSA (Saudi Rock Wool / Knauf Riyadh) |
| Green Glue compound + sealant | KSA (Acoustical Surfaces Riyadh) |
| Sylomer SR28 | EU (Buschek — only certified source) |
| RSIC clips, putty pads, IDU isolators | USA (Trademark / Mason) |
| Acoustic doors, observation window, certified silencers | UAE (IAC / AKINCO) |
| Grille cloth, stage boxes, Mogami, HDMI extender | USA / AV supplier |
Heavy, low-tech items ship local; certified acoustic items (Sylomer, RSIC, Green Glue, silencers, doors) come from their qualified source — do not localize these.