Activities in projects

Dear experts,

I would like to list projects with the the criteria as follows:

1. projects created for plant xxxx

If I understand it correctly, I can get them in the report CJ43N

2. projects that have activities

I have no idea how to get the info in any report nor SAP table

If there is a report where I can specify the criteria above, would you please give me the t-code.

If there is no such a report, I probably need to extract data from tables, and do vlookup in excel, so would you please tell me the table names and their relation.

Any idea would be appreciated.

Tony