8536490000 under HS Code ELECTRICAL APPARATUS FOR SWITCHING OR PROTECTING ELECTRICAL CIRCUITS, OR FOR MAKING CONNECTIONS TO OR IN ELECTRICAL CIRCUITS (FOR EXAMPLE, SWITCHES, RELAYS, FUSES, SURGE SUPPRESSORS, PLUGS, SOCKETS, LAMP-HOLDERS, JUNCTION BOXES), FOR A VOLTAGE NOT EXCEEDING 1,000 VOLTS - RELAYS: OTHER, 8504409000 under HS Code ELECTRICAL TRANSFORMERS, STATIC CONVERTERS (FOR EXAMPLE, RECTIFIERS) AND INDUCTORS -STATIC CONVERTERS: OTHER, and 8538909909 under HS Code Others. were the top exported HS Codes by JOINT STOCK COMPANY CHEBOKSAR ELECTRIC APPARATUS PLANT in 2021.