OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has affirmed the Financial Strength Rating of A (Excellent) and the Long-Term Issuer Credit Rating of “a” (Excellent) of Dorinco Reinsurance Company (Dorinco) (Midland, MI), which is the captive reinsurance company of The Dow Chemical Company (Dow). The outlook of these Credit Ratings (ratings) is stable. The ratings reflect Dorinco’s balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, neutral busi