For replacement of methyl bromide(MB) in Korea, there are several chemical options being introduced and developed in preplant and postharvest sections. In soil case, methyl-isothiocyanate(MITC) generating fumigant such as dazomet and metham sodium are currently being adapted for prevent from spreading soilborne disease and nematode, although there will be more successful application technology needed to develop in domestic circumstances. Also, ethanedinitrile(EDN), is newly developed chemical, could be one of the options to eradicate notorious soilborne diseases and nematodes near future. Ethyl formate(EF) now is showing the potential to replace MB in terms of consumer and worker safety and unwanted phytotoxic damage in routine MB fumigation. A phosphine gas(PH3) could be the last option to protect the import and export stored grains from stored grain insects and to solve the current issue such as PH3-resistant insect and consumer safety issues to replace metal phosphide. EDN also should be extended its use in not only timber and log fumigation in quarantine purpose but in use of national heritage and forest to keep wood infested pest safer. This presentation will be good opportunities to share the information and discuss with further research needs in current MB alterative program.