Treadstone Associates
Case File · Portfolio Operations

A shared purchasing programme across three sites

Anonymised, illustrative composite. Three businesses that used to compete for the same suppliers now shared an owner. The question was whether they could now also share a purchasing programme.

Treadstone Associates · Updated 2026

At a glance

  • • Buy-and-build platform in industrial services, three portfolio companies at three sites, each independently owned and competing for the same regional suppliers before being acquired within an eighteen-month window.
  • • Post-close, the operating partner wanted to consolidate purchasing across all three sites to gain supplier pricing leverage on shared inputs.
  • • The Competition Act’s criminal conspiracy offence reaches agreements to fix the price for the supply of a product, not the price for its purchase — joint procurement sits under the civil provision, s. 90.1, instead.
  • • Common ownership by the same holding company, not the commercial rationale for centralizing, was the fact that actually cleared the programme — the affiliate exception appears in both provisions, s. 45(6)(a) and s. 90.1(7).

The situation

A sponsor built an industrial services platform through three separate acquisitions completed over eighteen months, each a previously independent business operating in a different metro area. Before the acquisitions, the three businesses had, on occasion, competed for supply contracts with the same regional distributors — the market for their core consumable inputs was small enough that all three knew each other and, at least indirectly, knew roughly what the others were paying.

Once all three sat under the same platform holding company, the operating partner running the combined business wanted to consolidate purchasing: negotiate a single supply agreement across all three sites’ volume rather than three separate contracts, to capture the pricing leverage that scale should provide.

The problem

Before raising it with suppliers, the platform’s counsel flagged a genuine question: three businesses that had, until recently, been independently owned and had at times competed for the same supply contracts were now proposing to jointly negotiate purchase pricing. That has the shape of the conduct the Competition Act polices, and nobody wanted to build a centralized procurement function only to have it unwind under regulatory scrutiny later. The first job was to identify which provision was actually engaged, because the answer is not the one most people reach for.

Under Competition Act s. 45(1), “every person commits an offence who, with a competitor of that person with respect to a product, conspires, agrees or arranges (a) to fix, maintain, increase or control the price for the supply of the product,” and s. 45(8) defines “competitor” to include “a person who it is reasonable to believe would be likely to compete with respect to a product in the absence of” the very arrangement being assessed. Read quickly, that looks like it captures three former rivals sitting down to negotiate one purchase price.

It does not. Paragraph 45(1)(a) is written to the price “for the supply of the product.” The Competition Bureau’s Competitor Collaboration Guidelines state the consequence in terms: “The prohibition in paragraph 45(1)(a) applies to the price for the supply of a product, and not to the price for the purchase of a product. Accordingly, joint purchasing agreements — even those between firms that compete in respect of the purchase of products — are not in and of themselves prohibited by paragraph 45(1)(a) (or paragraphs 45(1)(b) or (c)) and will only be subject to review under the reviewable matters provisions in Part VIII of the Act.” Buy-side coordination is a civil question, not a criminal one. The live provision was never s. 45; it was s. 90.1, under which the Tribunal may order relief where an agreement between competitors “prevents or lessens, has prevented or lessened or is likely to prevent or lessen competition substantially in a market.”

The numbers

Three sites, one holding company owning 100% of the equity of each operating subsidiary since the last of the three acquisitions closed — a clean, unambiguous common-control structure with no minority co-owners or independent voting blocks at any of the three operating entities to complicate the analysis.

The rule that decided it

The Act supplied the answer twice, once in each provision, using the same test. Section 45(6)(a) states that the conspiracy offence “does not apply if the conspiracy, agreement or arrangement” is “entered into only by parties each of which is, in respect of every one of the others, an affiliate.” Section 90.1(7) carries a matching exception for the civil provision, in almost identical words: subsection (1) “does not apply if the agreement or arrangement is entered into, or would be entered into, only by parties each of which is, in respect of every one of the others, an affiliate.” And the Act defines the term itself: under s. 2(2)(a), “one entity is affiliated with another entity if one of them is the subsidiary of the other or both are subsidiaries of the same entity or each of them is controlled by the same entity or individual.”

All three operating subsidiaries were, since closing, wholly owned by the same platform holding company — squarely within the Act’s own affiliation test, which s. 2(4)(a) grounds in holding more than 50% of the votes to elect directors. A purchasing programme entered into only among the three subsidiaries and their common parent therefore sits outside the civil provision by the express operation of s. 90.1(7), and outside the criminal provision twice over: paragraph 45(1)(a) does not reach purchase prices at all, and s. 45(6)(a) would exempt the arrangement even from the parts of s. 45(1) that could otherwise bite — allocating customers or territories under (b), or restricting supply under (c) — if consolidation ever reached that far. Affiliated entities acting as what they now legally are, commonly controlled parts of one corporate group, are not treated as competitors conspiring with each other, whatever their commercial history before the acquisitions closed.

Counsel was explicit with the operating partner about the boundary of that comfort: the exemption runs to the platform’s own wholly owned subsidiaries, not to any looser arrangement the platform might later want with a fourth, still-independently-owned business it merely had a commercial relationship with. A genuine buying group among businesses that remain independently owned and controlled is a different fact pattern — still not a s. 45 problem, on the Bureau’s stated reading, but squarely a s. 90.1 one, assessed on whether the group could depress input prices by exercising monopsony power. The Bureau’s own general rule in the Guidelines is that it “will not challenge joint purchasing agreements under section 90.1 on the basis of a concern related to the exercise of monopsony power by the parties where the share of the relevant upstream market held by the parties to the agreement is less than 35%.” That is a stated enforcement posture, not a safe harbour written into the Act, and it turns on a market share nobody on this deal had measured.

Related reading

The portfolio-operations counterpart to this file — standardizing financial reporting across the same three-site structure — runs through one accounting policy across four companies.

Takeaways

  • • Competition Act paragraph 45(1)(a) reaches the price for the supply of a product, not its purchase. On the Competition Bureau’s stated reading, joint purchasing agreements are not in and of themselves criminal — they fall to be reviewed civilly under s. 90.1. Getting the provision right changes which test the programme has to pass.
  • • The affiliate exception appears in both provisions — s. 45(6)(a) for the criminal offence and s. 90.1(7) for the civil one — and s. 2(2)(a) defines affiliation by common control, not by commercial history.
  • • A pre-acquisition history of competing for the same suppliers does not defeat the affiliate exemption once common ownership is actually in place.
  • • The exemption tracks the corporate structure exactly — it does not extend to a still-independently-owned business the platform merely coordinates with informally. That arrangement is reviewed under s. 90.1 on monopsony-power grounds, where the Bureau has said it generally will not challenge below a 35% share of the relevant purchasing market.

Sources

  • Competition Act, s. 45 — marginal notes Conspiracies, agreements or arrangements between competitors (45(1)), Exception (45(6), the affiliate exemption at (a)) and Definitions (45(8), “competitor”). Paragraph 45(1)(a) is written to “the price for the supply of the product” — the wording the correction above turns on.
  • Competition Bureau — Competitor Collaboration Guidelines — the enforcement reading quoted above: paragraph 45(1)(a) “applies to the price for the supply of a product, and not to the price for the purchase of a product,” so joint purchasing agreements “are not in and of themselves prohibited” and are reviewed under Part VIII. Also the source of the 35% upstream-share threshold, which is a stated enforcement posture and not a statutory safe harbour.
  • Competition Act, s. 90.1 — the civil provision that actually governs buy-side coordination between competitors — marginal note Order, with the affiliate exception at s. 90.1(7), marginal note Exception.
  • Competition Act, s. 2(2) and s. 2(4) — marginal notes Affiliation and Control. s. 2(2)(a) is the affiliation test both exceptions use; s. 2(4)(a) grounds control in holding, directly or indirectly, more than 50% of the votes to elect directors.
  • No treadstonelaw.ca page covers this. The firm’s buy-and-sell library addresses non-competition and non-solicitation covenants, which are a different subject; nothing there addresses competition-law limits on joint procurement between commonly owned companies. Rather than link an unrelated page, this file cites the Act and the Bureau.

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