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Chilean power company AES Andes returned to the international market on Wednesday to raise $500 million in its first green bond sale in more than four years.

The new five-year notes carry a coupon of 6.3% and priced at 99.907 to yield 6.322%, equal to a spread of 220 basis points over US Treasuries, a sell-side source told LatinFinance.

AES Andes opened the initial price talk earlier in the day in the mid-200 basis points area and set guidance at around 225 basis points over USTs, plus or minus five points, the source said.

Investors placed as much as $1.7 billion in orders, according to a second source.

Citi, Goldman Sachs, Mizuho, Scotiabank and SMBC were global coordinators and active bookrunners, while BBVA, BNP Paribas, Crédit Agricole and JPMorgan were passive bookrunners on the Rule 144/Reg S offering.

The 2029 notes received BBB- ratings from Fitch and S&P Global and a Baa3 rating from Moody’s.

The company plans to use part of the sale proceeds to fund a tender offer that got underway this week and the remaining funds for green investments and to pay off existing bank debt.

AES Andes, which is a subsidiary of US-based AES Corp, sold its first green bonds in the cross-border market in October 2019, printing $450 million worth of 6.35% 2079 fixed-to-floating rate notes.