Taiwan is one of the most important ICT manufacture countries in the world, therefore utilizing Free and Open Source Software (FOSS) to cut down expenses and to increase competitive advantages is an inevitable method and unavoidable evolution for the majority of Taiwan companies. While implementing FOSS in commercial product developments, many Taiwan companies might have violated license obligations due to their misunderstanding, ignorance or the wrong conduct. Although it is a long way to go, some positive changes are going on. In this talk the speaker will go through these changes on a basis of the FOSS license consultation practice in the past few years, given by the OSSF legal team, which is a FOSS promoting project launched by the most preeminent academic institution, Academia Sinica in Taiwan. From the analyses of questions the Taiwan companies have submitted, we can know what they concerned in the first place about FOSS, how they got the related knowledge about FOSS, and which way they are trying to do of being in compliance with the license terms about FOSS. The important FOSS-related organizations and projects in Taiwan will be also introduced in the talk.