(1) Select the bond you want to trade in the bond list or in the search results, and then tap the Buy button on the bond details page. 
(2) Enter the nominal value and the buying price you desire. You can refer to the "Indicative Ask Price". (This price is for reference only and may differ from the actual transaction price.) 
(3) Tap the Buy button, enter your transaction password, and submit the order. Please wait patiently for the order to be matched. The transaction price will not exceed the order price.

Since bonds are traded over the counter and brokers are needed to match orders, transaction time and prices are influenced by various factors such as daily market liquidity and counterparty conditions.

You can try to increase the buying price or decrease the selling price, or wait patiently for the right counterparty or market price.

No, it can be held until maturity or sold in advance at any trading time.

The accrued interest on bonds has 2 parts: Firstly, the interest paid to the seller at the time of purchase. The other is the interest accumulated during the holding period with interest being earned for each holding day. 

Both parts of the interest will be paid to investors on the interest payment date. Investors can estimate whether they will receive interest on the next interest payment date based on whether the accrued interest they hold is approximately equal to for example, semi-annual interest.

Additionally if the bondholder sells the bond before the interest payment date, the buyer should pay the accrued interest to the seller.

(1) Total nominal amount and total cashback can be viewed by clicking [My Cashback] at the top of the campaign page.

(2) Total nominal amount and total cashback are converted into US dollars, which is calculated at a fixed exchange rate of US$1 = S$1.4.

(3) Specific cashback amount flow can be viewed by clicking [Cashback Record].

(1) Commission reduction will be refunded in the form of cash coupons within 7 working days after the completion of bond settlement.
(2) Cash coupon issuance is based on the currency of the traded bonds.
*Commission for U.S. Treasuries will be refunded in the form of USD cash coupons, and commission for SGS Bonds will be refunded in the form of SGD cash coupons.
*Detailed settlement flows are calculated in the original currency.

(3) Please check the cash coupons in [Me]-[Coupons]-[Cash Coupons], the cash coupons will be issued directly to your universal account after use.

In most cases, purchasing US Treasuries does not require paying taxes for non-U.S. residents. However, specific tax regulations may vary depending on individual circumstances and the type of US Treasuries invested in. Therefore, it is advisable to consult with tax professionals to obtain accurate tax information.