You can use your existing ESTA. From https://www.cbp.gov/travel/international-visitors/frequently-asked-questions-about-visa-waiver-program-vwp-and-electronic-system-travel:
How long is a travel authorization via ESTA valid?
…
A new travel authorization is required if: (1) the traveler is issued a new passport; (2) the traveler changes his or her name; (3) the traveler changes his or her gender; (4) the traveler’s country of citizenship changes; or (5) the circumstances underlying the traveler’s previous responses to any of the ESTA application questions requiring a “yes” or “no” response have changed. The associated fee will be charged for each new application submitted.
Since the purpose of your trip is not a question "requiring a “yes” or “no” response," you do not need to reapply for ESTA if you want to travel to the US for a different purpose.
(The purpose must of course be a purpose that is allowed under the visa waiver program, which is the case here.)
Credit:stackoverflow.com‘
4 Mar, 2024
4 Mar, 2024
4 Mar, 2024