When Singapore stepped up its industrialisation programme after 1965, then Minister for Finance Goh Keng Swee identified domestic savings as one of the ways to promote the growth of industries. Such savings could provide the government with a non-inflationary source of funds for national development. To facilitate the bank in carrying out this new role, the Post Office Savings Bank Bill was introduced in parliament on 30 July 1971 to turn the Post Office Savings Bank into a statutory corporation.



On 30 July 1975, at Jalan Tiga Ratus off Changi Road, another cache of 109 hand grenades was discovered in two earthen jars buried in the ground.



Singapore’s first waste-to-energy incineration plant at Ulu Pandan officially opened on 30 July 1979. During its operational period, it handled on average of 1,100 tonnes of waste per day, which forms about 15.3% of the total waste disposed of per day in Singapore and generated an average of 5,800 MWh of energy each month, enough to power some 16,000 four-room HDB flats for a month. It officially ceased operations on 11 August 2009.



Dr. Richard Hu Tsu Tau, Minister for Finance (May 1985-Nov 2001), unveiling the plaque to mark the opening of CPA Centre, the clubhouse of the Institute of Certified Public Accountants of Singapore or ICPAS, in a two-storey colonial bungalow on Turf Club Road on 30 July 1990.



Work began on Saturday, 30 July 2011, on Southeast Asia's first ecological corridor, Eco-Link@BKE, to connect Singapore's two biggest nature reserves across the expressway. Ever since the Bukit Timah Expressway (BKE) was constructed more than 20 years ago, animals in the Bukit Timah Nature Reserve and the Central Catchment Reserve have been separated from each other. But when the S$17 million Eco-Link@BKE is complete, they can soon be reunited by travelling across the link. After the link is complete in 2013, public access will be restricted for the first few years, while ecological monitoring continues to assess its effectiveness as a wildlife corridor. And when finally ready, NParks will consider guided walks on the link which will be a forest habitat in itself.