Form W-8BEN-E for Canadian corporations

Hi everyone,

My client’s Corporation is providing IT consulting services to a US Corporation. He is asked to submit Form W-8BEN-E to ideally avoid withholding tax. I am having difficulty filling up Part III with questions 14 & 15 in this form. The company is an Active NFFE as per the instructions mentioned in the guide. Can anyone guide me with these questions?

Thanks for your support.