Evidence of even more BS. Income Tax Act, Cap 134 specifically lists the following types of income as chargeable to tax. tax residency is more specific and will be ignored:

s10(1)(a):gains of profits from trade, business, profession or vocation...exercised
(b):gains or profits from any employment
.
.
.
(g) any gains or profits of an income nature not falling within any of the preceding paragraphs

except income specifically exempted from tax by s13(1) of the Act. there is also double taxation relief available for us citizens working in sg. anw Uncle Sam allows citizens working abroad to deduct foreign income tax from the bill owing to him.

Troll much?