Which portal provides consolidated financial data for stocks listed in Singapore Exchange? (see attached link of the example of required format)

https://klse.i3investor.com/servlets/stk/annqtyres/9334.jsp

Most of the data you need can be found directly in SGX's official website.

https://www.sgx.com/securities/securities-prices

The data for each counter can date back to a few years back.

As for the last column performance QoQ and YoY, though no data is available directly, you should be able to calculate them from the price chart itself manually given the indicators. (May be a bit tedious).