Based on its strong R&D capability in plasmons, Advanced Plasmon Technologies (APT) aims to develop spectroscopic, optical and analytic technologies. Its major customers will be testing, certification, and R&D labs. We are currently focusing on the development of noble metal nanoparticle-based substrates for dramatically amplifying Raman signals. A model chemical, malachite green, often added in seafood products for antibacterial purposes, is used to test our substrates. The detection limit, durability and repeatability are being evaluated. We will extend our substrates in the near future for the detection of additives in food, drinks, drugs, explosives and environmental pollutants.