Top-Up Industry Corp., founded in 1992, is an ISO 9001-certified manufacturer of a wide variety of electronic components including potentiometers, encoders, faders, switches, SMT jacks, cables, knobs, LED rings, and so forth. Besides our main product offerings, Top-Up also provides some on-demand customization and services such as PCBA assembly, SMT, and other processing. We have abundant experiences working and supporting global clients from industries across healthcare, home appliances, instrumentation, telecommunications, automotive, and more for 30+ years. We treat our clients like partners and have continued providing quality products, great value-added services, and innovative designs.