He became a trader of threads, ballpoint pens, and watches. www.philstar.com/business-life/2014/04/14/1311830/emilio-yaps-rags-riches-saga After World War II, Yap ventured into buying and selling surplus vehicles like wartime US trucks and military jeeps.
Siya ay naging mangangalakal ng sinulid, ballpoint pen, at mga relo. www.philstar.com/business-life/2014/04/14/1311830/emilio-yaps-rags-riches-sagaPagkatapos ng ikalawang digmaang pandaigdig, pinasok ni Yap ang pamimili at pagtitinda ng mga surplus na sasakyan tulad ng mga trak at pang militar na jeep noong panahon ng giyera.