EXHIBIT 4.3(i) ---------------------------------------------------------------- ---------------- SEMCO ENERGY, INC. TO BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of 2000 -------- SERIES A % SUBORDINATED...First Supplemental Indenture • March 22nd, 2000 • Semco Capital Trust Iii • Natural gas distribution
EXHIBIT 4.23Agreement as to Expenses and Liabilities • March 22nd, 2000 • Semco Capital Trust Iii • Natural gas distribution • Michigan
