Obsolete electric and electronic equipment could contain harmful substances. Make sure that your organisation allows another organisation to collect your equipment, that has the necessary permits. Make sure that the collecting organization is responsible for the further processing or the equipment according to the local regulation, by checking their permits.
Obsolete electric and electronic equipment like computes and laptops can be reused. However this equipment could contain sensitive information or perhaps viruses. Make sure that the collection organisation wipes any remaining data.