For Bursa Malaysia (KLSE) and Singapore Exchange (SGX), we can scrape from i3investor websites. This is how.

KLSE & SGX

This is the new formula for KLSE after the site revamp:

=index(ImportXML("https://klse.i3investor.com/web/stock/overview/5176?randomstring", "//div[contains(@id, 'stock-price-info')]//p[2]"), 1, 1)

And this is for SGX:

=index(ImportXML("https://sgx.i3investor.com/servlets/stk/g3b.jsp", "//td[contains(@class, 'big16')]"), 1, 1)

Just remember to replace the stock code with whatever you want, the part right before .jsp.

Gold Prices

You can use this formula to approximate USD per oz:

=GOOGLEFINANCE("GLD", "price")*10/POW(0.996,YEARFRAC(TODAY(), "18/11/2004", 1))

GLD is the ticker for SPDR gold trust ETF, the largest one out there. They charge 0.4% per annum since inception.