IFRS S2 + NIS B-1 for Food & Beverages in Mexico: 2026 Guide
BMV and BIVA issuers face the unique challenge of simultaneously complying with IFRS S2 (CNBV) and NIS B-1 (CINIF) for the same fiscal year, implying two regulatory frameworks, two regulators, and potentially two external assurance processes. Without a centralized platform, companies end up with sustainability and finance teams operating in silos, collecting redundant data in non-auditable spreadsheets. The overlap between IBSO indicators and IFRS S2 metrics is significant but not total, requiring precise mapping.
The food sector faces double exposure in IFRS S1: physical risk from water stress in agricultural supply zones (Sonora, Sinaloa) and transition risk from single-use plastics regulation (General Waste Law). ESG investors demand disclosure of agricultural supply chain resilience under 1.5°C and 2°C scenarios.
Why IFRS S2 + NIS B-1 Applies Differently in Food & Beverages
Sustainability Director and Supply Chain Director of food groups listed on BMV with CNBV obligation to report IFRS S1/S2
Dominant Scope 3 category 1: agricultural ingredients (wheat, corn, sugarcane) whose footprint varies by region, season and supplier — impossible to use a single generic emission factor under IFRS S2
Water management in restricted aquifer zones: plants in over-exploited aquifers in Guanajuato, Jalisco and Sonora must report physical water risk under IFRS S1 with 2040 horizon
Own delivery fleet (thousands of vehicles) with fragmented diesel consumption by route and region: consolidating Scope 1 for fleet requires telematics not all of the network has
Food loss in cold chain: IFRS S2 connects with Scope 3 cat. 12 (waste disposal) but spoilage rate by temperature is sensitive operational data that commercial teams resist sharing
Critical IFRS S2 + NIS B-1 KPIs for Food & Beverages
| Required KPI | Data Source | Difficulty |
|---|---|---|
| Carbon intensity: tCO₂e per tonne of food produced | Direct combustion (Scope 1) | High 🔴 |
| Water consumption: m³ per tonne produced at plants with CONAGUA concession | Electricity bills (Scope 2) | High 🔴 |
| Percentage of food loss and waste in distribution chain | Cat 1 - Bienes agrícolas comprados | High 🔴 |
| Tonnes of packaging plastic: post-consumer recycled vs. virgin | HR / payroll system | Medium 🟡 |
| HFC refrigerant loss rate per year (kg recharged / kg inventory) | ERP / accounting system | Medium 🟡 |
Hard-to-Collect Data in Food & Beverages
Carbon footprint of agricultural ingredients by batch and supplier (wheat from Sonora vs. Sinaloa have different fertilization and transport factors)
LP gas consumption in baking processes at small affiliated bakeries not metered in real time
Volume and final destination of high-organic-load wastewater (BOD) at animal protein processing plants
That is why manual Excel-based processes will not pass the 2027 assurance. Without automated traceability, an external auditor cannot verify the completeness or accuracy of emissions data.
Checklist: 8 Steps to Comply with IFRS S2 + NIS B-1 in Food & Beverages
- 1
Mapping and reconciliation of all 30 IBSO indicators with IFRS S2 metrics requirements to avoid duplication of effort
- 2
Unified GHG emissions data collection for Scope 1, 2, and 3 serving both frameworks simultaneously without double measurement
- 3
Management of two distinct assurance processes: CNBV's limited assurance under IFRS S2 and CINIF's review under NIS B-1, ideally with the same auditor
- 4
Alignment of reporting calendars — the integrated sustainability report must meet both deadlines from a single data collection cycle
- 5
Implementation of robust internal controls over sustainability information capable of supporting third-party assurance under both frameworks from 2027
- 6
Connect data sources (ERP, meters, suppliers) to a centralized platform
- 7
Review with internal audit team and adjust consolidation perimeter
- 8
Generate report in CNBV/CINIF format ready for external assurance
How Climatta Automates IFRS S2 + NIS B-1 for Food & Beverages
Automated Collection
Eliminate spreadsheets in Food & Beverages. Climatta connects your systems and automatically collects Carbon intensity: tCO₂e per tonne of food produced and other critical KPIs.
Auditor-Grade Traceability
Every data point has source, date, and owner documented. The 2027 assurance auditor can trace every figure to its origin in your systems.
IFRS S2 + NIS B-1 Report Ready
Generates the report in the exact CNBV + CINIF format — tables, metrics, and narrative. No last-minute manual reformatting.
Onboarding in 4 Weeks
Climatta connects to Food & Beverages systems in 4 weeks. No months-long IT project or external implementation consultant.
FAQ: IFRS S2 + NIS B-1 in Food & Beverages
Ready to comply with IFRS S2 + NIS B-1 in Food & Beverages?
Climatta centralizes all data collection, generates the report in regulatory format, and leaves it ready for 2027 external assurance. No spreadsheets.