Based on my very limited knowledge, there are mixed data points on whether the Chase business cards report to business bureaus.

1. Is this correct? (If not, then never mind the other questions.)
2. Are there any patterns?
3. Does company type make a difference? e.g. sole prop vs LLC vs other?
4. Does it make a difference whether you apply using EIN or SSN?*

* for question #4, I know it can make a difference to some things, but I'm only asking whether it tends to affect whether the card reports to business bureaus.

In my case it would be a sole proprietorship applying under my SSN, with likely no preexisting business credit history.