Uncertainty over future delivery and production compelled buyers to pay up for the quantity and quality on offer, they said.
The situation on estates seems to have deteriorated since workers commenced obstructing dispatch of teas last week. Many estates now report little or no work.
Labour unions are obstructing the transport of made tea from hill-country estates to the Colombo auctions to back demands for higher wages.
Talks between unions and regional plantations companies which run estates remain deadlocked.
The unions are demanding a daily wage of 500 rupees a worker which plantations companies say they cannot afford.
Another round of talks to renew a two-year collective wage agreement that expired in March is to be held Thursday afternoon.
Forbes & Walker Tea Brokers said there was excellent wide spread demand resulti