HEADLINES: Cathay, Visa sign up for Submedia tunnel medium

Submedia Asia will officially launch its motion picture tunnel-advertising medium in Hong Kong's Mass Transit Railway system with Cathay Pacific and Visa as the first companies to try it out. The initial ads - expected to be about 20 seconds long - will be shown between the Wanchai and Causeway Bay stations, which make up part of the city's central business district.