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Annual US investment-grade corporate bond sales have reached their second-highest level ever as companies capitalize on lower borrowing costs to refinance debt, fund acquisitions and invest in AI initiatives. Supply of $1.499 trillion has edged last year’s total of $1.496 trillionBloomberg Terminal following Tuesday’s four-deal sessionBloomberg Terminal, according to data compiled by Bloomberg News. While issuance is unlikely to reach 2020’s record $1.75 trillionBloomberg Terminal, borrowers have benefited from a favorable environment this year, with strong investor demand and central banks around the world lowering policy rates.