Our tariff is tier based. That site only used the cheapest starting tier. Here is the full tariff from TNB.

Tariff A - Domestic Tariff
For the first 200 kWh (1 - 200 kWh) per month sen/kWh 21.80
For the next 100 kWh (201 - 300 kWh) per month sen/kWh 33.40
For the next 300 kWh (301 - 600 kWh) per month sen/kWh 51.60
For the next 300 kWh (601 - 900 kWh) per month sen/kWh 54.60
For the next kWh (901 kWh onwards) per month sen/kWh 57.10

For china you need to be specific, which city as all different rates.
attached is 2 beijing and tian jing.

and yes still cheaper than malaysia.

please double check on hashrate input is indeed 110th/s and the electricity is 3250w.
am getting about 35usd inclusive of tnb costs. different firmware, different settings and temperature will yield differently. Just buy in and start mining, you will get a clearer picture.
If buying used, your hashrate should be around 90 - 95th/s running on 3250w or more depending on the psu condition and hash board condition. its fun to play with, get them under oil or a custom hydro block for optimal performance. rarely you will want to sell them, most likely will mine until its too costly to repair them or ran out of spare parts.

If you want to get into asics, its better to get scrypt now. faster ROI.
alternately can consider ethash asics, its good money there compared to gpu mining.
Sha256 mining is there to cover some expenses, need more money to stay afloat.