Script writing for a short corporate film- English native speaker only

Local aluminum manufacturer wants to shoot a documentary style short film (3.5 min to 4 min) with English Voice Over talking about the factory and the process. We have done some homework and have a brief uploaded and some breakdowns. We need a professional to create the script in English using the proper linguistic form suitable for about 3.5min to 4min Voice over.
Only native english speakers will be accepted.