Buy ETFs for Long Term

When I look back few of my posts which posted two weeks ago, I particularly noticed the two stocks: SIA Engg and Genting Singapore. They have been performing so far so good. Below are their present charts:





I think I have done most short term trades for the past two years or so. and... now em considering to hold few long term postion--I mean really long term enough for retirement.

These two ETFs are under my consideration.

United SSE 50China ETF


STI ETF