About Hemlock Semiconductor Hemlock Semiconductor Operations (HSC) is a leading provider of hyper-pure polycrystalline silicon (polysilicon) and other silicon-based products used in the manufacture of semiconductor devices, solar cells and modules. At HSC, we’re passionate about silicon-based technology and its unique potential to connect and energize the world we share. HSC’s polysilicon enables customers to produce high-tech electronics and solar energy, and our efficient manufacturing process delivers products with an ultra-low-carbon footprint. HSC began operations in 1961. More information can be found at: hscpoly.com | @hscpoly | LinkedIn | Facebook | YouTube Community Guidelines: These community guidelines exist to ensure a positive, respectful and informative community across Hemlock Semiconductor’s social media channels. To create and maintain a welcoming community for all, we reserve the right to monitor, remove comments and ban users who violate our community guidelines. Be respectful – We do not allow comments that attack other users, employees or organizations. We do not tolerate disparagement of people highlighted in images or videos based on gender, race, class, ethnicity, national origin, religion, sexual preference, disability or other classification. Be kind – We do not allow language that is libelous, defamatory, obscene, threatening, offensive, demeaning, derogatory, disparaging, or abusive, or contains links to content that contains any of this language. Be considerate – We encourage open and productive conversations, and do not allow spamming, comments intended to derail the conversation or other objectionable conduct. We are always working to create a positive and engaged online community and appreciate your cooperation with these guidelines.
| Website | http://www.hscpoly.com |
| Revenue | $366.6 million |
| Employees | 849 (570 on RocketReach) |
| Founded | 1961 |
| Address | 12334 Geddes Rd, Hemlock, Michigan 48626, US |
| Phone | +1 603-744-8113 |
| Technologies |
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| Industry | Chemical Manufacturing, Electronics, Industrial Supplies and Parts, Manufacturing, Other Equipment |
| Web Rank | 7 Million |
| Keywords | Polysilicon, High Purity Silicon, Semiconductor Materials, Semiconductor Manufacturing, Semiconductor Devices, Silicon Wafers, Electronic Materials, Silicon Technology, Solar Cells, Photovoltaic, Advanced Materials, Materials Science, Solar Energy, Solar Modules, Energy Technology, Renewable Energy, Clean Energy |
| Competitors | BASF, Dow, Henkel, Solvay, Huntsman Corporation, Wacker Biotech US, Momentive, Mitsubishi Chemical Holdings America, KMG, 信越化学工業(株) +27 more (view full list) |
| SIC | SIC Code 367 Companies, SIC Code 36 Companies |
| NAICS | NAICS Code 334 Companies, NAICS Code 33 Companies |
Looking for a particular Hemlock Semiconductor employee's phone or email?
The Hemlock Semiconductor annual revenue was $366.6 million in 2026.
Fernando Signorini is the COO of Hemlock Semiconductor.
570 people are employed at Hemlock Semiconductor.
Hemlock Semiconductor is based in Hemlock, Michigan.
The NAICS codes for Hemlock Semiconductor are [334, 33].
The SIC codes for Hemlock Semiconductor are [367, 36].