The Philips factory was located on Rue Georges Mauroy in Queveaucamps. Construction was started in 1960 as a joint venture between Philips and another giant Belgian electrical company ACEC (Ateliers de Construction Electrique de Charleroi). ACEC was one of the early pioneers in fluorescent lighting and was strong on technology but not on the manufacturing. Together they planned to form the new company CBRE (la Compagnie Belge Réunie d'Eclairage), whose purpose was to mass produce linear fluorescent lamps under the ACEC brand. Later Philips gradually acquired all of CBRE as well as ACEC's lamp business which proved to be a disaster for them, since lamps used to earn stronger profits than the entire rest of all other electrical industries put together. ACEC's remaining businesses in nuclear power plants, cables, transformers, motors, lighting fixtures etc were not nearly so strong and most of the rest of the company has since been taken over or closed down - I believe they are only still making cables today.
In 1962 the factory was opened with two TL lines, and in 1968 a third line had been added and the workforce rose to 250. In 1970 there was another expansion to 6 lines with 450 employees. In 1972 Philips decided to concentrate all of its global T5 fluorescent production in Belgium, and those additional lines were transferred from Roosendaal in Holland. However this decision was reversed in 1983 when T5 moved back to Roosendaal again. I am not certain precisely when Queveaucamps closed down but suspect it may have been around this time.
Afterwards the site was taken over by the Germany company Trevira who manufactured polyester yarn for automotive interior fabrics, and that factory also closed down in 2010. I am not sure if the building is still there, but in a couple of weeks I have to drive to Tournai which is very close so I will make a small detour through Queveaucamps and see what is still remaining!
Sources of info online: see pages 174-175 at
https://www.persee.fr/doc/geoca_0035-113x_1968_num_43_2_2627Most other info comes from three books published about the history of Philips Roosendaal. Since that was the Philips TL Mother Factory with responsibility for all fluorescent production globally, these books also provide a lot of information about its interactions with the other Philips fluorescent plants, especially the machines built at Roosendaal which were sent to equip the other factories such as Queveaucamps. These books are not online but you can buy them quite cheaply, although they are all in Dutch (aber wenn du bist Deutsch, ist das vermütlich noch ziemlich gut zu verstehen!):
- 50 Jaar Philipslicht in Roosendaal, Jubileumuitgave 1948-1998
- 60 Jaar Philips Roosendaal, Waar blijft de tijd, 2008
- Licht op een Veranderende Stad, publ. de Ghulden Roos, 2015
The info in these three Philips books often contradicts the other Belgian book about the manufacturing in Tournai region, and they are surely a more accurate reference. Therefore some points in my summary above are different than you will read in the link online.