Sustainability Reportings (GRI,TSRS,ESRS)

Sustainability reports are communication documents created to inform internal and external stakeholders about an organization’s economic, environmental, social, and governance performance in relation to its sustainable development goals.

Companies may engage in sustainability reporting for various reasons: to better understand sustainability and climate-related risks and opportunities, to enhance corporate reputation and brand loyalty, to evaluate and benchmark sustainability performance against laws, regulations, norms, performance standards, and voluntary initiatives, to compare performance internally and externally, to comply with national legislation and stock exchange listing requirements, and to identify expectations around sustainable development from both the company and its stakeholders.

Transparent Reporting in Compliance with Standards

All reporting processes are conducted by Metsims Sustainability Consulting, tailored to sector-specific requirements, company needs, economic status, workforce size, export priorities, and stock exchange listings. Reports are prepared in compliance with GRI, TSRS, and CSRD standards.

The Global Reporting Initiative (GRI) is the most widely used sustainability reporting framework worldwide, enabling organizations to transparently disclose their environmental, social, and economic impacts. The updated 2021 GRI Standards have strengthened the sector-specific reporting approach, aiming for more effective disclosure of sector-related impacts.

The Turkish Sustainability Reporting Standards (TSRS), issued by the Public Oversight Accounting and Auditing Standards Authority (KGK), became mandatory in 2024 for companies identified through a decision tree model. While broadly aligned with GRI, TSRS requires third-party assurance and covers elements such as sustainable business models, corporate structure, strategy, sustainability and climate-related risk and opportunity management, targets, and performance indicators.

The Corporate Sustainability Reporting Directive (CSRD) is one of the EU’s most comprehensive regulations making sustainability reporting mandatory and auditable. Gradually enforced from 2024 onward, CSRD applies not only to large EU companies but also to non-EU companies operating within the EU. CSRD-compliant reports must be prepared in accordance with the European Sustainability Reporting Standards (ESRS), following a double materiality assessment and covering high-priority areas such as sustainability governance, climate risks, human rights, and value chain impacts. Like TSRS, CSRD also mandates third-party assurance, enhancing the reliability of disclosures.

Fortified Content

At Metsims, our business model is built on a holistic, sustainability-focused approach. From the initial materiality analysis to report design, we offer both content development and strategic guidance. The process begins with a double materiality assessment, evaluating both the company’s impact on sustainability and how environmental and social developments affect the company.

Our team, specialized in sustainability reporting, supports companies in aligning with TSRS and CSRD requirements, offering actionable insights into sustainability and climate-related risks and opportunities. We add depth and decision-making support to the reporting process through critical tools such as corporate carbon footprint calculations, life cycle assessment (LCA), sustainability strategy development, target setting, and key performance indicators (KPIs).

We deliver transparent and reliable sustainability reports fully compliant with current regulations and frameworks such as GRI, TSRS, CSRD, and TCFD. This helps ensure legal compliance and build stakeholder trust.

 

Sustainability Reportings

You can contact us to listen to our success stories on sustainability reporting consultancy and to get information.

Meet our Sustainability Reporting (GRI) Consultants

Orhan Atacan

Sustainability Manager

Gülbahar Korkusuz

Senior Sustainability Advisor

Orhan Atacan

Sustainability Manager

Gülbahar Korkusuz

Senior Sustainability Advisor

Sustainability reporting refers to strategic communication documents in which companies transparently disclose their environmental, social, and governance performance. These reports serve as a tool to demonstrate how sustainability and climate-related risks and opportunities are managed through a holistic approach.

 

Amid increasing global environmental risks and social expectations, companies are now expected to report not only financial but also ethical and sustainability performance. Sustainability reporting helps organizations assess and improve their sustainability strategies. supplier relations and responsible sourcing practices.

Globally, sustainability reports are most commonly prepared according to GRI standards. In Europe, CSRD requires reporting in accordance with ESRS standards, while in Turkey, the TSRS standards issued by the KGK are used.

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