In 2021, Taiwan's printed circuit board industry generally ushered in a good industrial prosperity. The demand for various terminal products is strong, which promotes the demand for printed circuit boards. Although there will be long and short material interference in the second half of the year, overall, manufacturers' future expectations are still It is an optimistic view. In 2022, in the hard board factory, the main expansion focus this year can be said to be HDI products that are in short supply throughout the year. In addition, the upstream material copper foil substrate factory that will follow the simultaneous expansion of HDI will also be actively investing next year. , and in the part of traditional multi-layer boards, although the expansion of production is not large, it will continue to invest in equipment with high board layers.