Allied bombing, especially in July 1943, devastated the factory site; the original munitions factory was never rebuilt and later remediation of this site was difficult due to unexploded munitions.

[4] In 1971, FZ bought the Fort d'Évegnée from Belgian Army, using it to store explosives.

[6] FZ rocket systems are qualified and in operational use on more than 300 platforms including Airbus Helicopters, AgustaWestland, Hindustan Aeronautics, BAE Systems, Embraer, General Dynamics, Hawker Beechcraft and other aircraft manufacturers.

[7] In October 2015, FZ has successfully completed a test firing of its 70 mm laser-guided rocket (FZ275 LGR) from a Denel Rooivalk helicopter.

[8] In December 2017, an Airbus Helicopters H145M helicopter successfully launched a 70mm Laser Guided Rockets (FZ275 LGR) during its firing campaign at the Älvdalen test range of the Swedish Defence Materiel Administration Flight test Centre.