jhoo/Yuki,
I shall list out the difference in the pricing between Jasvy and Hi-Tech.
Jasvy - $100 nett/lot 200pcs, sub $0.20/pc, string @$0.10/pc. Will tie insert to card.
Hi-Tech - $80 +GST/lot 200pcs, sub $0.20/pc, string provided. Does not tie insert to card.
Hi-Tech is at AMK Tech Place 1 Blk 4010 AMK Ave 10 #02-01/02. Tel: 64589455
I called Speed Technology as well. They sound friendly over the phone too and charges are like $80 +GST/lot 400pcs, string not provided. But it was far from my home so I selected Hi-Tech.