Ua ʻae ʻia nā huahana a Kingsine e ʻoi aku ma mua o 70 mau ʻāina ma ka honua holoʻokoʻa i nā ʻoihana he nui o ka mana uila, metallurgy, petrochemical, mining railway a me nā hui noiʻi ʻepekema pili like me ke kālepa like ʻana o ka mika a me nā hale hana pale pale, a loaʻa ka hoʻokipa maikaʻi ʻana mai ka honua nui. Hōʻikeʻike Energy e like me IEE PES T＆D Conference o USA, POWER-GEN International o USA, Middle East Electricity o Dubai, HANNOVER MESSE o Kelemānia a me FIEE Electrical o Brazil.ʻO kāna Relay-Tester ka hana kūpono no nā mea hoʻomalu relay kaulana kaulana e like meAbb, Siemens, Alstom, Toshiba, Schneider, Areva, Sel, Ge etc a me Kingsine hoʻi e hāʻawi i ka lawelawe piha me kāna ʻupena hoʻolaha mai nā ʻāina he nui nā hoa o ʻEulopa, Asia a me Middle East.