A House in Scarborough, a Regulator’s Own Rulebook, and the $1.49 Billion Question GWI Won’t Answer

A House in Scarborough, a Regulator’s Own Rulebook, and the $1.49 Billion Question GWI Won’t Answer

How NPTAB’s published joint-venture standards square with a Toronto residential address, a chairman’s spouse, and a public utility’s defense that never mentions its own contracting partner

OPINION BY: — Investigations Desk –August 2026

When Guyana Water Incorporated moved to publicly defend itself last week against corruption allegations levelled by Opposition Leader Azruddin Mohamed, it offered a specific, sourced account of how one of its most scrutinized contracts was won. “Under the Caribbean Development Bank (CDB) Water Supply Improvement Programme,” GWI stated, “international competitive bidding guidelines resulted in Sigma Engineers receiving Lot 2 to construct treatment plants at Leguan and Wakenaam.”

It is a clean, confident sentence. It is also incomplete in a way that matters.

The contract GWI is describing — Contract Agreement dated October 28, 2024, for GYD $1,486,448,800 — was not awarded to “Sigma Engineers.” It was awarded to a joint venture: “Sigma Engineers Ltd & Hebei Wansheng Environmental Protection Engineering Co. Ltd. JV.” The contract document itself describes this JV as “a company under the Laws of Canada,” with its principal place of business listed at 6 Poplar Road, Toronto, Ontario.

This publication visited that address, virtually. It is a single-family detached house in Scarborough — a driveway, a garage, personal vehicles parked outside. There is no signage, no visible office, nothing to distinguish it from any other home on the street.

WHAT THE TITLE RECORDS SHOW

A parcel register search through Ontario’s ONLAND system traces the property’s ownership. In 2005, Tom and Helen Zoubaniotis purchased the parent lot for $405,000. The lot was subdivided in 2015. On March 1, 2017, the Zoubaniotis family sold the subdivided parcel — what is now 6 Poplar Road — to a woman named Maleka Azim, for $1,465,000, financed through a mortgage with the Canadian Imperial Bank of Commerce.

The registered mortgage instrument, filed the same day, contains a routine disclosure required under Ontario law when a property owner is married: the name of the consenting spouse. That name is Syed Arshed Reza.

Syed Arshed Reza is not an unfamiliar name to anyone who has followed Sigma Engineers’ history. He is one of three men who founded Sigma Engineers Ltd in Bangladesh in 1985, and he currently serves as the company’s chairman. He is also one of three Sigma executives — alongside managing director Syed Md Kamal — named in a 2020 Bangladesh Anti-Corruption Commission case alleging the embezzlement of Tk 34.42 crore ( approx.$4m USD) through an inflated water-pump procurement under the Manu River Irrigation Project. Public reporting has not identified a resolution to that case in the six years since it was filed.

To be precise about what the documents do and do not establish: they confirm that the chairman of Sigma Engineers’ Bangladesh parent company is married to the woman who owns the house listed as the principal place of business of the Guyana-contracted joint venture. They do not establish that Maleka Azim holds any formal role in Sigma Engineers, in the JV, or in the GWI contract. A marital consent signature is a legal formality, not evidence of corporate involvement. This newsroom is not asserting a connection the documents do not support — we are reporting what the public record shows, and what it does not yet show, so readers can weigh it for themselves.

“The lead partner of the JV clearly identified and properly authorized… all partners in the JV legally liable, jointly and severally, during bidding and execution of the contract.”

— NPTA Standard Evaluation Criteria Handbook, 2009

WHAT NPTA’S OWN RULES REQUIRE

Whatever the answer to that question turns out to be, a separate and more immediately answerable question sits underneath it: did anyone at the National Procurement and Tender Administration Board verify any of this before awarding a Guyanese public utility contract worth nearly $1.5 billion?

NPTA’s own published standards say they were supposed to. The agency’s Standard Evaluation Criteria Handbook for Prequalification and Bidding, in force since May 2009 and still linked from NPTA’s official website today, devotes an entire section to joint-venture bidders. It requires that each partner in a JV submit the complete documentation a company would submit if bidding alone. It requires a signed Joint Venture Agreement, or at minimum a Letter of Intent to execute one, establishing that all partners are “legally liable, jointly and severally.” It requires a description of each partner’s proposed responsibilities and financial contribution. And it requires the JV to designate a lead partner, “clearly identified and properly authorized.”

The handbook’s own evaluator checklist — the literal form NPTA’s evaluation committees are meant to complete — asks these questions in writing: “Is the lead partner of the JV clearly identified and properly authorized? Are the JV’s sharing provisions in compliance with the minimum participation specified? Are all partners in the JV legally liable, jointly and severally, during bidding and execution of the contract?” A companion instruction to evaluators could not be more direct: “Particular attention should be given to issues related to eligibility and JV requirements.”

NPTA’s companion Guide to the Public Procurement Procedures adds a second layer. Whatever was verified at the prequalification stage, the Guide states, “shall be confirmed at the time of award of contract, and award may be denied to a bidder that is judged to no longer have the capability or resources to successfully perform the contract.”

Verification, in other words, is not a box ticked once and forgotten. It is meant to hold at the moment the government’s signature goes on the page.

Both documents are dated 2009 and show no recorded amendments in their own version-control pages — but they remain the standing manuals NPTA publishes today, and there is no indication any newer version has superseded them.

A PUBLIC DEFENSE THAT SKIPS THE QUESTION

GWI’s statement rejecting Mohamed’s allegations was, on its own terms, thorough. It walked through five separate contracts — the Region 4 plants, the Hope Surface Water Treatment Plant, the Shelter Belt rehabilitation, well-drilling packages, and Leguan/Wakenaam — citing bidder counts and competing prices for each. It is a document written to project procedural rigor.

But at no point does it engage with the fact that one of those five contracts was not awarded to a Guyana-registered company at all. It was awarded to a Canadian joint venture whose declared headquarters is a house in Scarborough, and whose only public link to Sigma’s ownership runs through a chairman’s wife’s name on a mortgage document.

If GWI’s own account of its due diligence has no room for that fact, it raises the question of whether NPTAB’s evaluation process had room for it either — or whether, as this newsroom’s review of the record to date suggests, Sigma Engineers’ Guyana registration was treated as sufficient proof of the whole joint venture’s standing.

This newsroom has not yet obtained NPTA’s Board Approval letter for the CDB Lot 2 award specifically — the document that would show, in NPTA’s own words, how the awardee was named and what was verified. Comparable approval letters obtained for two other Sigma contracts (the Hope plant and the Shelter Belt rehabilitation) name only “Sigma Engineers Ltd” as awardee, with no reference to any joint-venture partner. Whether the Leguan/Wakenaam approval letter follows the same pattern is, for now, an open question. NPTA’s own rules require such awards to be published on its website within two days of contract signing; this newsroom is continuing to seek that record and will publish it in full once obtained.

Ongoing works at one of the sites.-(2024)

Construction on the Leguan and Wakenaam plants is, by all accounts, proceeding. That is not in dispute, and this publication does not suggest otherwise. But an ongoing project is evidence that a contract was signed and is being executed — it is not evidence of what due diligence occurred before the signing, and it is not a substitute for the documentation NPTA’s own rules require. The two questions are separate, and the public is entitled to an answer on both.

WHAT REMAINS OPEN

This publication is not alleging that Maleka Azim, or Syed Arshed Reza, or the Sigma/Hebei Wansheng joint venture, engaged in any wrongdoing in connection with this contract. Nor are we alleging that GWI or NPTAB acted with corrupt intent. What the documentary record shows, and what we are reporting, is narrower and more precise: a public utility awarded a Guyanese taxpayer- and CDB-funded contract worth $1.49 billion to a joint venture whose declared corporate address is an ordinary house; a regulator with published, specific, decades-old rules for verifying exactly this kind of arrangement; and a public defense of that award, issued by the utility itself, that does not mention the joint venture existed.

This publication has sought comment from Guyana Water Incorporated and the National Procurement and Tender Administration Board on the specific matters raised in this report and will publish any response received in full.

— The 592 Guardian will continue reporting on this contract as records become available.