Shanghai Jinjiang, formed in 1983 and associated with Shanghai Haixing, supplies S1017 from Jin Jiang in November 1986. S971 follows J J Nagoya, chartered from Moon Keung. Its oval was enlarged to show marks flanking the letters, matching those on C253’s flag; an apparent straight dash above is uncertain because the photograph is angled.
Keep the explicit scope label independent; no alias or company identity is inferred.