Doubt About EIN Number

I opened a LLc company and I got the EIN Number but when I filled the aplication I put how Principal Business Activity "Construction" and how Principal Products/service "framing and drywall" but I can't get the licence

for this activity and finaly I get a licence how "Floor Coveryn Istalations. The name of company is the same, no change. Can I use The actual EIN number for the new activity? I need a new number? Or I need amend the actual number?

Thanks.