Purchasing at DAS Environmental Experts
What we Expect from Our Suppliers
Our exhaust gas cleaning and wastewater treatment systems ensure safety, environmental protection and production stability for our customers at all times. Our suppliers contribute significantly to this performance through their own standards. We therefore prefer to work with partners who are also committed to quality management in accordance with ISO 9001, environmental management in accordance with ISO 14001 and occupational health and safety management in accordance with ISO 45001. Together, we maintain a continuous improvement process.
We also expect our suppliers to offer flexible processes with regard to critical delivery times, long-term commitment, a contribution to product and process innovation, and competitive[AL1] and stable prices. Through efficient cooperation on pricing and distribution policy issues, we jointly ensure the long-term success of DAS EE in all global markets.
In the interests of a sustainable supply chain, we also pay attention to the ESG efforts of our business partners and aim to keep CO2 emissions generated by the transport of goods as low as possible through local sourcing.

Our Purchasing Policy
- The purchasing policy of DAS Environmental Experts is derived from our corporate policy and our corporate goals. The satisfaction of our customers is our top priority.
- The success of our products is closely linked to their quality, which is why we work with our suppliers to meet the high demands of our customers and thus improve our competitiveness together.
- We place trust in our suppliers and build on fair and long-term cooperation. We expect our partners to respond flexibly to our requirements and to work with us to identify potential for innovation and cost reduction.
- As an environmental technology company, we expect our suppliers to comply with all legal regulations on environmental protection and resource conservation, and we give preference to suppliers with appropriate certification.
- In the interests of a sustainable supply chain, we also pay attention to the ESG efforts of our business partners and aim to keep CO2 emissions generated by the transport of goods as low as possible through local procurement.
Our Range of Materials
Developing new supplier relationships is an essential part of our materials management strategy. Our range of materials includes the following products:
- Plastic assemblies (PE, PP, PVDF, PVC‑U, PVC‑C)
- Piping (plastic, stainless steel, copper)
- Welded assemblies, cladding, sheet metal parts
- Coatings (protective coatings, for example Halar®, colour coatings)
- Turned parts, milled parts
- Measurement technology
- Automation technology, control technology
- Electrical equipment, electrical components
- Valves
- Pneumatics
- Vacuum technology
- Fans, blowers
- Pumps, dosing technology
- Plate heat exchangers
- Heaters
- Filling bodies, droplet separators
- DIN parts, standard parts
- Industrial packaging
- Plant equipment
- Operating equipment
- Office supplies, auxiliary materials, operating materials
Would you like to become a DAS supplier?
The qualification of new suppliers usually takes place in the following 3 steps:
- Supplier self-assessment: You can use our self-assessment template to send us all the important information. In addition to your contact details, this includes your company details, information about your manufacturing technology, certificates and quality management information.
2. Pre-qualification: After our purchasing team has reviewed your profile, we will contact you to let you know whether your company is currently eligible or suitable for qualification as a supplier. You will receive more detailed information about our operational and strategic requirements.
3. Qualification: Depending on the specifications of our delivery requirements, we will now check the quality of your products and processes. Together, we clarify further preconditions for cooperation and commercial aspects.
We maintain long-term partnerships with our suppliers. We hold regular, personal meetings to discuss joint operational and strategic development with the aim of offering DAS customers consistently high quality.
Your contacts for all questions relating to purchasing and supplier management
Procurement
Strategic Procurement | Project Procurement | Technical Purchasing
Logistics at DAS Environmental Expert
Our manufacturing site in Dresden, Goppelner Strasse 44, is open for deliveries as follows:
Monday to Thursday
07:00 am — 04:00 pm
Friday
07:00 am — 03:00 pm
Please find detailed directions here.
Messeteilnahmen von DAS EE
DAS EE’s Approach to E‑Billing
From 1 January 2025, companies in Germany will be legally obliged to receive e‑invoices. An e‑invoice is a digital invoice that is transmitted in a machine-readable format such as ZUGFeRD or XRechnung. These formats enable automated processing, which makes the exchange of invoices faster and more efficient. This also includes reducing administrative effort, shortening processing times and digitising business processes. According to the Federal Ministry of Finance, , there is a transition period for the issuance and transmission of e‑invoices until 1 January 2027. From this date onwards, companies will then be obliged to issue invoices electronically in a structured invoice format. The legal requirements for e‑invoices are set out in the Growth Opportunities Act (Article 23), the Value Added Tax AT Act (Section 14) and EU Directive 2014/55/EU. E‑invoices must ensure that the origin of the invoice and its content are unchanged and authentic in order to comply with legal requirements. This includes measures such as a qualified electronic signature or a secure transmission procedure.
DAS EE is actively preparing for the switch to e‑invoices. These promote transparency, optimise data processing and minimise errors that can occur during the manual processing of paper documents. We are currently continuing to issue invoices in PDF format and sending them to our customers via the usual channels (email, upload to customer portals, etc.). During the transition period until 1 January 2027, we are working intensively to implement the necessary systems and processes for future e‑invoicing. We will be transmitting a machine-readable format by 2027 at the latest. We are currently able to receive all formats and prefer e‑invoices in ZUGFeRD format. We will also continue to accept invoices in PDF format by email to our electronic mailbox . If you have any questions or concerns, please do not hesitate to contact us. Contact us at: .
DAS EE is actively preparing for the switch to e‑billing. This promotes transparency, optimises data processing and minimises errors that can occur when paper documents are processed manually. We are currently continuing to create invoices as PDFs and sending them to our customers via the usual channels (email, upload to customer portals, etc.). During the transition period until 1 January 2027, we are working hard to implement the necessary systems and processes for future e‑billing. From 2027 at the latest, we will transmit an electronic, machine-readable format. We are currently able to receive all formats and prefer e‑bills in ZUGFeRD format. We also continue to accept invoices as PDF files by e‑mail to our electronic inbox at . If you have any questions or concerns, please do not hesitate to contact us at: .