About 200 people attended a dinner on the night before the Shears. They included eight shearers who made the inaugural finals in 1967.
"Seeing so many old faces there ... it was a special night,'' guest speaker Sir David Fagan said.
Mr White was made a life member and had the honour of shearing the first sheep on the new board.
"I wasn't expecting that,'' he said.
Feedback from the shearers and woolhandlers was "all positive'', Mr White said.
The A&P Association was also pleased with the publicity it gained for its coming show.
The Waimate Creative Fibre Group, which demonstrated woolcrafts during the Shears, received so much interest it would offer items for sale next year.
Sir David said the event and its new pavilion was "a real credit to the committee and Warren White, and also the Waimate community and the A&P Association''.
"It's an example to the rest of the country. Lots of these competitions have folded. It's too easy to let these things go.''
His son, Jack Fagan, of Te Kuiti, who won the Open Invitation Plate shearing, said the pavilion was "one of a kind''.