Transmission of an agent variable into a stylesheet

Hello everybody,

Sometimes we plan TENDER shipments that service providers reject. To ensure delivery, we then follow the SPOT BID process.
We have an agent that sends emails to contacts linked to the different Service Providers chosen in the bid. This email is generated by a stylesheet and includes shipment general information, stops, etc.

Current process: When the agent runs, we define the contacts for every service provider chosen in the bid as a variable (via "NOTIFY CONTACT" using a saved query).

Our requirement: We also want to include basic information (Service Provider name and email) for the specific contact receiving the email. We need this because the same email account can work with different service providers (e.g., same company but different divisions, with different Service Provider IDs).