Skadden, Arps, Slate, Meagher & Flom has advised China Petroleum & Chemical Corp., better known as Sinopec, on a second $3.5 billion bond offering.

The recent offering by the Chinese state-owned oil giant followed one in April for the same amount. Each was among the largest bond issues in Asia, excluding Japan, in the past decade.

The issue was divided into four tranches: $750 million in three-year dollar-denominated bond bearing a 1.25 percent coupon, $750 million in five-year euro-denominated debenture with 1.875 percent yield, $1.5 billion in 10-year dollar-denominated securities with a 3.125 percent interest rate, and $500 million in 30-year dollar-denominated debt with 4.25 percent coupon.

Shanghai partner Gregory Miao and Beijing partner Peter Huang led the Skadden team advising Sinopec. Both partners also advised Sinopec on the April offering.

Davis Polk & Wardwell Hong Kong partners James Lin and Eugene Gregor advised underwriters Citigroup Inc, Bank of America Merrill Lynch, UBS AG, and J.P. Morgan Securities Plc.