The phrase "a forum at which" is correct and usable in written English.
It can be used to refer to a specific event or platform where discussions or exchanges of ideas take place.
Example: "The conference served as a forum at which experts shared their insights on climate change."
Alternatives: "a platform where" or "a venue for".
On Thursday evening, Community Board 2 held a forum at which the two plans were debated.
On the campus, Scott Carlin, an associate professor of geography and environmental studies, said he was organizing a forum at which faculty and staff members could express views and "figure out what, if anything, is possible".
Ms. Glancy was only a minor target of the F.B.I. inquiry, but her trial turned into a forum at which the public could get a peek at the Plunder Dome doings.
Earlier in the campaign season, the local LWV proposed a forum at which candidates from all the parties could explain their policies as it related to women, as they have often done in the past.
It was September, and I was at a forum at which several professors, including me, discussed free speech issues before a large audience of students at the University of California Berkeley.
(Owing largely to the influence of the Washington cases, the question had already evoked national interest and was to be widely discussed during the spring and summer of 1949). Provost Dykstra viewed the debate as a forum at which both sides were to be presented but attendance was to be restricted to graduate students.
A new report from the American Consumer Institute (released at a Capital Hill forum at which yours truly served as moderator) finds consumer benefits in the hundreds of billions of dollars will flow from tomorrow's 5G broadband wireless services.
A handful of consultancy firms and a health insurance giant bidding for NHS contracts have been operating a discreet forum at which they receive regular briefings from senior health service managers charged with ushering in the new era of competition among its providers.
All the more important, he said, to set up a security-related dialogue between the two countries involving both civilian and military officials.Mr Gates wants a regular forum at which the two sides discuss issues such as nuclear weapons, missile defence, cyber-warfare and space.
In announcing his rejection of the merger, Mario Monti, the soft-spoken academic who heads the body responsible for antitrust regulation for the European Commission, also renewed his call for a global forum at which antitrust experts from around the world can forge common approaches.
Still, creation of the commission establishes a public forum at which people will be able to speak directly to, if not Sheriff Jim McDonnell himself, at least his representative.
