Your hydrocracker doesn't care which country its antifoulant came from. Your CFO does.
PARCO's Mahmood Kot complex runs at the top of Pakistan's refinery utilization league. The next major turnaround means cooling-system passivation, exchanger analysis, demin train rebuild — all chemistry-intensive. AAS is the Karachi chemistry desk that ships within the week, on programmes the engineering team can audit on the dosing skid the same day. Sole Pakistan agent for Shaanxi Ande and Innovative Water.
Turnaround-aware · Stocked SKUs · Direct-principal pricing
PARCO's procurement window is open on two simultaneous projects.
PARCO Coastal Refinery (Hub, Balochistan) — 250,000 bpd, $5-6B, Euro-4/5 spec, on stream 2025-26. Greenfield deep-conversion in a water-scarce coastal location. Cooling-tower and RO antiscalant programmes for a plant of that size are seven-figure annual contracts and the supplier shortlist is being drawn now. Mahmood Kot's Euro-5 upgrade scope is finalising in parallel. AAS is the Karachi chemistry desk that ships within the week, with same-day technical visits to the Mahmood Kot complex and a stocked SKU list (PAC, CPAM, UN-307, UN-611, AD-401, AD-303, AD-402).
Source: parco.com.pk/future-projects · ConstructionBoxscore · The News PARCO throughput report
Where AAS chemistry has run through Pakistani refinery turnarounds.
Cooling-loop chemistry replacement · Karachi · 2018
12,000 m³/h cooling tower at a Karachi refinery operation. Took over from an incumbent supplier with persistent CaCO₃ scaling. AD-401 + AD-303 programme. Cycles of concentration ↑ 3.2 → 5.1; 22 months on programme.
RO antiscalant retrofit · IPP · 2020
2 × 200 m³/h RO trains, UN-307 phosphonate dosing programme with 6-month autopsy retest. Membrane life +28%; CIP frequency halved. Same pattern as a refinery boiler-feedwater RO.
Closed-loop cooling commissioning · Port Qasim petrochem · 2025
Design-build 1,800 m³/h closed-loop. AAS supplied skid fabrication + commissioning + chemistry retainer. Handover on schedule; 18 months on retainer.
Stocked SKUs, every drum with a CoA.
Sole-agent direct from two specialist Chinese principals (Shaanxi Ande, Innovative Water) — no trader mark-up, single legal entity at the Karachi office and the dosing skid. Per-batch certificate of analysis on every shipment. Engineering desk in Karachi for feedwater audits, programme design, commissioning, autopsy.
PAC — polyaluminium chloride, multiple Al₂O₃ basicities, liquid + powder CPAM — cationic polyacrylamide, multiple charge densities, powder + emulsion UN-307 / UN-611 — RO antiscalant + non-oxidising biocide for membrane systems AD-401 / AD-303 / AD-402 — cooling-tower antiscalant, corrosion inhibitor, recirculating-system fungicide
"Anyone can sell you a drum. We tell you how to dose it. That is the difference between a trader and a chemistry partner, and we are deliberately the second." Syed Rayhan Ahmad · Founder · Austin Anderson Solutions, Karachi
Capability statement, ready to share with the engineering team.
If your team is preparing the next utilities-chemistry tender, or you have a current scaling / fouling / foaming event that needs a chemist on the dosing skid this week, AAS can come to your site the same business day in Karachi. Capability statement PDF is below; ISO 9001 cert, NSF documentation where applicable, and sample CoAs shared on supplier-qualification request.
I'm with PARCO and want to discuss the next utilities or turnaround programme.
Tell us your site, the loop or train, the symptom, and the volume. Same-business-day reply from Karachi with a programme outline and the relevant CoAs / SDS attached.