The strong demand for PCB products in the communications industry has been determined. After all, the Shanghai shares of A-shares have risen nearly tenfold since the low point of last year. Increased 168%, share price and performance resonance. As the raw material of copper clad PCB, its investment value has also been tapped by the market with the rise of PCB. The most representative is the A-share Shengyi Technology, which has the largest increase nearly three times this year. After Shengyi Technology surged, its rival Kingboard Laminates (01888) also performed. Starting from the low of 5.32 Hong Kong dollars per share during the year, as of the close of September 16, the stock has recorded a nearly 40% increase. However, compared with Shengyi Technology, the growth rate is significantly behind. According to data from Prismark Partners LLC, Kingboard's global market share in 2018 was 14%, and it has ranked first in the global copper laminate market for 14 consecutive years. It also produces copper-clad laminate products, and Kingboard's laminate market share is greater than that of Shengyi Technology, but the stock price growth rate is far behind. Is there any investment opportunity worth exploring?