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


About
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.
Amsterdam & Istanbul
> 20.000
Metals & mining, port operations
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.
Making the 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
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.

“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.”
“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.”
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.

„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
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.