CoreX

 x Sunhat

5

min

How CoreX Uses Sunhat Across Multiple Subsidiaries to Streamline Data Management

Published on

21 Sep 2026

In conversation with the

CoreX Holding

team

How CoreX Uses Sunhat Across Multiple Subsidiaries to Streamline Data ManagementSunhat Brand Assets Yellow
Sunhat Brand Assets Yellow

CoreX Holding is a global industrial conglomerate. They operate in 10 sectors, including metals & mining, ports & terminals, green energy, shipping & logistics, infrastructure & construction, oil & gas, chemicals, international trading, financial investments, and venture capital. The company is active in 55 countries across 5 continents.

Industry

Metals & mining, port operations

Company size

> 20,000

FTE

Headquarters

Amsterdam & Istanbul

Table of Contents

Case name

What

CoreX

achieved with Sunhat:

Impossible → possible

through centralized, standard question sets and automation of tasks

2 x

times faster due to Sunhat’s AI and answer library, together with collaborative data collection

200+

departments reached across 100+ subsidaries

Challenge

Having to answer various questionnaires from external stakeholders (such as banks) for a large number of subsidiaries. Furthermore preparing for a CSRD report.

Solution

Sunhat provides a central place to:

  • dynamically collect data, particularly narrative data
  • connect the data to individual disclosures
  • generate answers

for multiple questionnaires and for CSRD reporting requirements.

The Situation

Sustainability at CoreX

For CoreX, sustainability is more than a regulatory requirement — it’s a strategic priority. As global environmental and social challenges intensify, the company has made sustainability a central part of its long-term vision, embedding it across business practices, stakeholder relationships, and operational processes. They aim to lead by example and inspire progress across its industries.

In 2022, CoreX established an ESG department to drive its sustainability agenda forward. The department is led by the Chief ESG Officer, who also chairs the company’s ESG Committee. This governance structure ensures a coordinated and consistent approach to ESG efforts, supported by specialized sub-committees and working groups. Through this framework, CoreX is well-positioned to execute its sustainability strategy with clarity, accountability, and long-term impact.

Furthermore, CoreX focuses on creating a robust and scalable sustainability data infrastructure that supports both compliance and innovation. The adoption of digital tools like Sunhat plays a critical role in enabling this strategy.

‍

The Challenge

More Efficient Answering of Inquiries through Dynamic Use of Data for Various Sustainability Requests

In view of the increasing demand for sustainability information - be it through questionnaires from stakeholders or the CSRD - CoreX was faced with a major challenge: it lacked a central point of data for the increasing sustainability data. The company was therefore looking for a solution to create a central database that would also optimize data management processes and ensure compliance with all changing standards and reporting requirements.

{{testimonial-big}}

The Solution

The Sunhat Moment

Sunhat convinced the sustainability team at CoreX because the software not only addresses their data management requirements but also provides flexibility and scalability to adapt to future requests and standards. 

Sunhat's software provides the functionality required to align CoreX’s internal data structure with the diverse sustainability requirements of their global customers and investors. This allows them to efficiently manage their sustainability data and ensure that each response is tailored to the specific needs of the requestor. By leveraging Sunhat's advanced technology and flexible data collection capabilities, CoreX is able to consolidate their sustainability data into a single, accessible platform and tackle the challenges of managing sustainability requests head-on.

‍

How CoreX Uses Sunhat

CoreX uses various modules of the Sunhat platform to efficiently link incoming ESG questionnaires with the company’s centralized sustainability data. By setting up flexible data collections, CoreX enables effective collaboration across its many subsidiaries and departments.

The ability to assign tasks and responsibilities gives CoreX sustainability team members visibility and insight into the workflow, allowing them to track progress and prioritize tasks effectively. And this takes place while also significantly reducing turnaround time and the risk of human error.

Sunhat's inbox and project management capabilities enable the team to effectively process incoming ESG requests and ensure compliance with standards. Sunhat’s tools help to take the necessary steps and actions to achieve continuous progress and long-term results in their sustainability initiatives.

{{testimonial-small-1}}

‍

The Results

A Database of Quantitative and Qualitative ESG Data

By integrating Sunhat, CoreX can continuously build a comprehensive database of quantitative and qualitative ESG data. With each new question CoreX answers using Sunhat, their central data pool grows, leading to the following results:

  • Streamlined data management across multiple subsidiaries
  • Improved response efficiency & quality
  • Automated reporting with the help of Sunhat’s AI

This enables CoreX to efficiently meet the requirements of various regulations and stakeholders.

Streamlined data management across multiple subsidiaries

Consolidating ESG data from 100+ subsidiaries into a single, accessible platform.

Improved response efficiency & quality

Faster responses with fewer errors, and confidence that submissions are correct.

Automated reporting with the help of Sunhat's AI

Minimizing manual effort and delivering consistent, verifiable reports.

200+ departments reached across 100+ subsidiaries

Connecting ESG data collection across CoreX's global operations in 55 countries.

“Sunhat’s AI-assisted disclosure generation tool genuinely understands how data and evidence fit together to provide concise and accurate answers. It’s not just auto-filling – it’s thinking with context, using our company’s information and indicators. It allows us to provide faster responses with fewer errors and gives confidence that our submissions are correct, without the hallucination risks.”

Georg Robert Wagner
Chief ESG Officer

„Partnering with Sunhat enables us to consolidate ESG data across entities globally and comply with the CSRD. By streamlining workflows, minimizing manual effort, and reducing the risk of error, Sunhat helps us to save time and deliver consistent, verifiable reports with confidence.“

Asli Cagla Yildrim
Global Sustainability Director

This Could Be Your Success

Real teams, real numbers, real proof. Book a meeting to see what your own success could look like with Sunhat.

Customer success story

The People behind This Story

Learn More about the Platform

These people from the

CoreX

team walked us through the project.

Georg Robert Wagner
CoreX Holding

Chief ESG Officer

Asli Cagla Yildrim
CoreX Holding

Global Sustainability Director

It's Time to Prove What You Already Do

Your next questionnaire, assessment, or audit meets traceable proof.
With Sunhat, you verify your evidence once, then reuse it everywhere.
See how you can get there.

Resources

More Stories from Sunhat Customers

Real insights from teams who close their Proof Gap and went from scattered data to audit-ready proof for CSRD, CDP, EcoVadis, and more.

All stories
How CoreX Uses Sunhat Across Multiple Subsidiaries to Streamline Data Management
CoreX

How CoreX Uses Sunhat Across Multiple Subsidiaries to Streamline Data Management

CSRD
How CoreX Uses Sunhat Across Multiple Subsidiaries to Streamline Data Management
How TRICOR optimises ESG Reporting with Cozero and Sunhat
TRICOR

How TRICOR optimises ESG Reporting with Cozero and Sunhat

Customer Requests
EcoVadis
How TRICOR optimises ESG Reporting with Cozero and Sunhat
How Sunhat Enhances Sustainability Data Management for ECHTERHOFF
Echterhoff Holding GmbH

How Sunhat Enhances Sustainability Data Management for ECHTERHOFF

Data Management
EcoVadis
How Sunhat Enhances Sustainability Data Management for ECHTERHOFF