The notes will mature on Apr 12, 2028.
The coupon rate of the SLB will be subject to a step-up margin of 0.25% per annum from the interest period commencing Oct 12, 2025 if the stated greenhouse gas emissions target is not met.
The net proceeds from the issuance will be applied by Optus to fund its ordinary course of business, the company said in a filing.
Shares in Singtel closed 3 cents higher or 1.22% up on Apr 3 at $2.49.
