New Tibet Post Office at Mount Everest

Have recently become aware of a new Post Office in Tibet set up in May 2001 in the Rongbuk Valley at the base camp for Mount Everest. At 17,000 feet it is claimed to be the worlds highest Post Office. It apparently opens at 11am every day from April to August and costs 3 yuan (c43 US cents) to send a letter to Beijing, and 9 yuan (c1.35 US dollars) to send a letter to England.