In the 1930s, Macau's traditional income streams related to illegal opium sales dried up, as the Royal Navy's Eastern Fleet suppressed piracy and smuggling in support of Hong Kong's growing commercial status. Traditional local industries of fishing, firecrackers and incense, as well as tea and tobacco processing, were all small scale, while Macau Government income from 'Fan-Tan' gambling was only around US$5000 (about US$100,000 in modern money) per day. So the financially pressed Portuguese government urged the colony's administrators to develop greater economic self-sufficiency. One channel that bore fruit was as a transit point for the new trans-Pacific passenger and postal flights, for competing airlines from the US and Japan – which was at the time engaged in conflict with China. In 1935, Pan-Am secured sea-landing rights in Macau and immediately set about building related communications infrastructure in the enclave, allowing a service from San Francisco to begin in November that year.