Critical GREEN SMC Private Limited (CUIN: 0091552) was incorporated in January 2015 with a single mission: to bring genuine environmental engineering expertise to Pakistan's industrial and municipal sectors — not just equipment sales dressed as engineering.
Over the past decade, we have designed and delivered 25+ wastewater treatment projects across Pakistan's sugar, textile, food, edible oil, pharmaceutical, municipal, and housing sectors. Our projects span Punjab, Sindh, KP, and Islamabad Capital Territory.
We are technology-neutral engineers. We recommend the right system for your wastewater — not whatever we happen to have in stock. Our range spans UASB reactors, IC reactors, MBR systems, SBR plants, DAF/SAF flotation, constructed wetlands, underground STPs, and more.
Engineering integrity, not catalogue selling.
We recommend the right technology for your wastewater — UASB, MBR, SBR, DAF, or constructed wetlands — based on your parameters, budget, and site. Not what we have in stock.
Every project begins with characterisation of your wastewater — COD, BOD, TSS, pH, temperature, flow profile. Correct characterisation is the foundation of correct design.
Deep working knowledge of NEQS, Punjab EPA, Sindh EPA, and KP EPA standards. We handle IEE/EIA preparation, EPA liaison, and discharge consent applications.
Feasibility study → IEE/EIA → Process design → Equipment supply → Civil coordination → Installation → Commissioning → O&M training. One responsible party, one point of contact.
We design constructed wetland systems — HSSF, vertical flow, FWS, and floating treatment wetlands — that integrate biodiversity and green landscape with effective wastewater treatment.
Our AI Engineer Assistant provides 24/7 preliminary technology guidance, collects project parameters, and helps qualify your project before formal engineering engagement.
Full process design for industrial ETP and municipal/housing STP — inlet works, primary, secondary, tertiary, and sludge management stages. RCC civil drawings and equipment specifications provided.
CG-branded treatment equipment — UASB, MBR, SBR, DAF/SAF, volute press, bar screens, lamella clarifiers, ClO₂ generators, smart dosing systems, and more.
IEE, EIA, EMS design and implementation, environmental audits, baseline studies, and EPA liaison for industrial, infrastructure, and housing projects.
Turnkey STP packages for DHA, LDA, Bahria Town, and private housing societies. Underground MBR, SBR, and constructed wetland options with full EPA compliance documentation.
Design and implementation of HSSF, vertical flow, FWS, and floating treatment wetland systems — the most sustainable and low-maintenance treatment option for appropriate applications.
Operator training, O&M manuals, troubleshooting support, and annual inspection services for treatment plants we have designed and commissioned.
Critical GREEN SMC Private Limited
0091552
Incorporated Jan 2015
Islamabad Office
Full address available on our Contact page
Tell us about your wastewater challenge and we'll prepare a free technical recommendation within 48 hours.
