Competition watchdog clears Caillé-IBL merger with behavioral safeguards against market lo

Concentration Caillé-IBL at Reunion: Behavioral Commitments and the Vertical Lock-In Challenge

Decision 26-DCC-164, handed down by the Competition Authority on July 31, 2026, cleared the joint acquisition of Caillé Grande Distribution and Make Distribution by the Caillé and IBL groups, subject to binding behavioral commitments. The operation, notified on May 12, 2026, consolidates roughly fifty supermarkets and small supermarkets under the Leader Price banner alongside four hypermarkets branded Run Market, all located on the island of Reunion. The case’s doctrinal significance lies not in the transaction’s scale but in the remedy structure chosen by the Authority, which identified no horizontal competition risk while flagging a vertical and conglomerate threat stemming from IBL’s beverage bottling operations.

Additional reference context is available at https://kohenavocats.fr/2026/08/13/concentration-caille-ibl-reunion-engagements-comportementaux-verrouillage-vertical/.

This vertical configuration is familiar terrain in the Indian Ocean’s island economies, where a single enterprise routinely operates as both distributor and supplier to its own competitors. The Authority’s statement clarifies that IBL, through its subsidiary Edena, received exclusive bottling rights for multiple Coca-Cola beverages starting October 1, 2026, including the brand’s flagship product. The risk materialized as potential degradation of supply terms for competing distributors seeking access to Coca-Cola products for their own retail operations. The decision reveals how French merger control law addresses vertical effects in local markets and tests the scope and real-world effectiveness of behavioral remedies deployed to neutralize such risks.

The competitive analysis proceeded along established lines. Under Article L. 430-1 of the Commercial Code, a concentration operation encompasses acquisition of control over one or more enterprises, with control defined as the ability to exercise decisive influence over an enterprise’s activity. Joint control by two independent groups over two distribution companies fell squarely within this definition, since decisive influence would be exercised jointly. The Council of State’s April 17, 2025 decision on Cellnex asset transfers restated the constant jurisprudence: the Competition Authority must conduct prospective analysis grounded in plausible economic scenarios, delimit relevant markets encompassing products or services offered by the merged entity and those of competitors that exert significant competitive pressure, then characterize any anticompetitive effects and assess whether they threaten sufficient competition (CE, 17 avril 2025, n° 469494). The same requirement had been formulated identically in Reunion’s retail distribution litigation, when the Council of State reviewed the Bernard Hayot group’s acquisition of Vindémia: the Authority must characterize anticompetitive effects and assess whether they threaten sufficient competition on affected markets (CE, 3 juillet 2023, n° 440948).

In that same Vindémia case, the Council of State had noted that Mayotte and Reunion constitute two distinct geographic markets, with retail distribution of food-dominant products evaluated at the local level. Decision 26-DCC-164 follows this island-specific logic. The Authority found that the operation would not harm competition across the catchment zones of the target stores, given relatively limited cumulative market shares and the presence of credible competitors. No serious doubts about horizontal harm justified opening an in-depth examination on that ground.

The vertical risk presented a different profile. IBL is not merely a distributor. Through subsidiaries Edena and Phoenix Reunion, it also bottles and imports beverages. The recent Coca-Cola contract grants Edena exclusive bottling rights for multiple group beverages starting October 1, 2026. The merged entity would thus control competing distributors’ access to an essential input in their product offerings, measured in the non-alcoholic cola-based beverage market. The notion of vertical lock-in is familiar to the administrative judge overseeing merger control. In the GBH case, the Council of State noted that the Authority had identified risks of vertical effects between wholesale food and non-food distribution markets and supply markets for food-dominant products at Reunion, owing to customer lock-in risk: GBH could cease supplying its stores with food-dominant products from its wholesale competitors (CE, 3 juillet 2023, n° 440948). In the April 17, 2025 Valocîme decision, the high court examined input lock-in allegations similarly, dismissing them after finding that the new entrant’s market shares remained limited and that a third-party operator would have sufficient competitive alternatives (CE, 17 avril 2025, n° 469494).

The difference with these precedents lay in the strength of the vertical link created. The Authority concluded that IBL could, post-operation, degrade supply conditions for Coca-Cola products to competing distributors, accounting for the forthcoming bottling exclusivity. The conglomerate risk, separately, involved potential subordination of these product sales to sales of other products marketed by IBL’s subsidiaries or third parties, a figure captured under Article 102 of the Treaty on the Functioning of the European Union as abuse through subordination of contract conclusion to acceptance of supplementary services.

This input lock-in risk carries no hypothetical character in Reunion’s economy, where it has already been identified and sanctioned. By decision 21-D-25 of November 2, 2021, the Competition Authority sanctioned practices in Reunion’s molasses supply sector, marked by tariff discrimination and supply contract exit lock-in. Faced with principal and incidental appeals, the Paris Court of Appeal rejected those appeals on July 3, 2025, after finding that the relevant market was defined as molasses produced from sugarcane cultivated at Reunion for local distilleries (CA Paris, 3 juillet 2025, n° 21/21673). The case presents striking proximity to Caillé-IBL: an upstream operator controls supply conditions for actors who are simultaneously customers and competitors on the downstream market. It confirms that the Authority’s vigilance regarding vertical effects in overseas economies extends beyond prospective merger control to potential sanction of realized practices.

The remedy structure departed from structural divestiture. Article L. 430-5 of the Commercial Code permits parties to commit to measures addressing anticompetitive effects, either at notification or before the twenty-five-working-day deadline expires. The Authority may then authorize the operation by reasoned decision, conditioning authorization on effective execution of commitments. IBL undertook two commitments: first, to apply fair, transparent, and non-discriminatory conditions for competing distributors’ supply of Coca-Cola products; second, to refrain from subordinating these product sales to sales of other products marketed by its subsidiaries or third parties. These two prongs symmetrically address the two identified risks: access discrimination and tying.

Recourse to a non-discrimination behavioral remedy is not unprecedented in overseas distribution. The Paris Administrative Court of Appeal ruled, regarding tariff commitments made before the New Caledonia competition authority, that the authority need only assess whether the commitment could offset the operation’s anticompetitive effects and maintain sufficient competition (CAA Paris, 12 avril 2023, n° 21PA00263). The formula applies, mutatis mutandis, to the national Authority: the criterion is the commitment’s capacity to preserve sufficient competition, not its formal label.

The commitment regime for concentrations differs from the procedure for anticompetitive practices under Article L. 464-2. The Court of Cassation ruled, regarding a decision rejecting a proposed commitment in contentious proceedings, that such recourse aims only to allow the Paris Court of Appeal to verify, within limits of the Authority’s discretionary power, that the enterprise had opportunity to present a commitment proposal capable of addressing identified competition concerns within legal timeframes and conditions; absent such opportunity, the court must annul and remit to the Authority to remedy the defect (Com., 31 janvier 2024, pourvoi n° 22-16.616). In merger control, discretionary power concerns sufficiency assessment, which third parties may contest, as the Council of State recalled in GBH: third parties cannot usefully criticize the Authority’s choice to authorize with commitments without invoking the in-depth examination procedure, but they may contest the decision’s merits if they show interest and believe it threatens sufficient competition on affected markets (CE, 3 juillet 2023, n° 440948).

The overall economy of decision 26-DCC-164 thus remains faithful to merger control orthodoxy: the remedy must be proportionate to the risk, and behavioral form is appropriate when asset divestiture cannot eliminate risk, provided the feared lock-in stems from contractual exclusivity whose effect can be neutralized without structural transfer.

The decisive question for any behavioral commitment is not its drafting but its execution over time. Article L. 430-8 of the Commercial Code equips this control. If the Authority finds parties have not executed an injunction, prescription, or commitment in the fixed timeframe, it may declare non-execution, withdraw the authorization decision, enjoin execution under penalty, or impose a fine not exceeding 5 percent of French turnover for the last closed fiscal year. Execution is not measured solely against formal compliance. In its November 20, 2024 Kosc decision, the Council of State stated that the Authority must investigate whether, even if formal criteria expressly provided in a commitment are met, the parties have adopted measures or behavior depriving the commitment of scope and producing the anticompetitive effects it intends to prevent (CE, 20 novembre 2024, n° 435944). Substantive effectiveness thus trumps appearance of execution, a point of particular weight for non-discrimination obligations whose violation will lodge in tariff and logistics conditions rather than clause language.

Market operators enjoy open access to control of alleged breaches. The Council of State ruled that persons intervening on markets affected by a merger authorization, who have raised the Authority’s attention to alleged breach of an injunction, prescription, or commitment in the authorization decision, enjoy standing to contest for excess of power a decision preventing the Authority from exercising its Article L.