Purchasing conditions

We like to make clear agreements. Click here for our purchasing conditions and here for our logistics purchasing conditions.


We aim to follow meticulous and transparent procurement procedures. We publish our public tenders via Negometrix. Click here for a list of current tenders.

Twence has a complaints procedure for handling complaints during and after the tender. Complaints can be submitted via the contact form.

Safety and the environment

Some of the most important safety rules are given below.

  • Always follow the instructions of the staff of Twence.
  • The traffic rules at the site are in accordance with the Dutch Road Traffic and Traffic Signals Regulations (RVV). The maximum speed is limited to 30 km/h, unless otherwise indicated: see the signs at the site. Drive on the site so as to prevent obstruction and/or dangerous situations for other persons.
  • Smoking is only permitted at the locations designated for that purpose. These locations can be recognised by the smoking zone pillar.
  • The use of and/or being under the influence of alcohol and drugs is strictly forbidden.  We carry out random checks on this.
  • It is forbidden to take children younger than 16 years on to the Twence site, unless otherwise agreed with Twence.
  • If your vehicle is leaking or you lose your load, report this immediately to the CCR (central control room) at +31 (0) 74 2404 555.
  • Anyone who carries out work at Twence in the plants or the grounds must obtain a work permit with a multi LOTO list from the CCR.
  • For accidents or emergencies, call the internal emergency number immediately: +31 (0) 74 240 455. You will speak with a CCR staff member. State your name, the location and nature of the accident or emergency, the number of any victims and the nature of the injuries clearly.
  • In the event of fire, accidents and other emergencies, follow the instructions of the company emergency response team. Company emergency response team members can be recognised by reflective vests with ‘BHV-Twence’ on them.
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Maintenance stops

Every year, Twence organises a kick-off meeting about the Maintenance stops. All important aspects concerning safety and work instructions are discussed at this event. Click here for the most recent presentation.