Book size: 2650; Comments: EUR1.5bn 2yr Social, fxd cpn 2.625%, at 99.80, yld 2.729%, Spread: 15bps vs Interp. FRTR 2.5% Sep 2027 (MID 99.966 / 2.517%) and FRTR 2.4% Sep 2028 (MID 99.40 / 2.645%). LEI: 9695004688W2B6R2E206;

Reoffer: 2yr: OAT+15bp / 99.8 / 2.729% Benchmark: 2yr: Interp. FRTR 2.5% Sep-27 (MID 99.966 / 2.517%) and FRTR 2.4% Sep-28 (MID 99.40 / 2.645%) Final Books: In excess of €2.65bn (incl. €350m JLM). Peak book in excess of €3.2bn (incl. €400m JLM) Spread set at: 2yr: OAT+15bp - Books in excess of €3.2bn (incl. €400m JLM) Guidance: 2yr: OAT+18a Issuer: Agence Centrale des Organismes de Sécurité Sociale (ACOSS) Ticker: ACOSSL LEI: 9695004688W2B6R2E206 Issuer Rating: Aa3 (Negative) / A+ (Stable) / A+ (Stable) (Moody's/S&P/Fitch) Risk weighting: 0% LCR Status: HQLA Level 1 classification Format: Senior Unsecured, neuMTN, NGN, Not Listed, ECB eligible Size: €1.5bn Coupon: 2.625% Fixed, Annual ACT/ACT Settlement: 20-Mar-26 (T+6) Maturity: 20-Mar-28 Spread: +15bps vs Interp. FRTR 2.5% Sep-27 (MID 99.966 / 2.517%) and FRTR 2.4% Sep-28 (MID 99.40 / 2.645%) Reoffer: 99.8% / 2.729% Docs: Issuer’s Negotiable European Medium Term Note Programme dated 29-Jan-26 Law: French law Listing: Not Listed Denoms: €200k x €200k Bookrunners: BNPP, BRED, CACIB, ING, J.P. Morgan, Natixis, Societe Generale (B&D) Timing: Priced. TOE: 14.30 CET / 13.30 LDN. FTT immediately Target market: Manufacturers' target market (MIFID II/UK MiFIR product governance) is eligible counterparties and professional clients only (all distribution channels) Use of Proceeds: Proceeds of the transaction are used alongside the issuer’s “Social Bond Framework” Investor Presentation: https://www.urssaf.org/files/Investisseurs/2026/Investor_presentation_2026.pdf Social Bond Framework: https://www.urssaf.org/files/Investisseurs/2025/Cadre_d_emissions_2025_UK.pdf SPO: https://www.urssaf.org/files/Investisseurs/2025/SPO_UCN_072025.pdf

Proceeds of the transaction are used alongside the issuer’s “Social Bond Framework”