LISUN has several senior engineers who are experts of the IEC International Electrotechnical Commission. They are responsible for the drafting and formulation of many of these standards, and also sponsored several IEC related meetings. LISUN has always been working closely with the IEC International Electrotechnical Commission, and can usually publish test instruments that fully comply with the IEC requirements at the first time, greatly enhancing the competitiveness of Chinese products exported overseas.

IEC standards are also being adopted by other certifying bodies such as BSI (United Kingdom), CSA (Canada), UL & ANSI/INCITS (United States), SABS (South Africa), SAI (Australia), SPC/GB (China) and DIN (Germany). IEC standards adopted by other certifying bodies may have some noted differences from the original IEC standard.