Questions we
actually get.

KM Innovation Corp. grows CVD ZnSe in Gwangju, Korea. KM Innovation USA quotes, stocks and ships from Sarasota, Florida. You are not buying a catalogue reseller’s mystery ingot.

Laser grade is for CO₂ (10.6 µm absorption). Optical grade is for imaging / thermal / spectroscopy. Same chemistry, different rejection. See the grade blog.

Sufficient material to yield. Water-jet nested shapes cut ~2 mm larger than the finished blank so you still have grind stock. Circle, square and thick formats.

Diameter +2.032 mm (0.080"), thickness ±0.254 mm (0.010"), edge chip <0.762 mm (0.030"). Say if your CAD already includes that fat.

Uncoated unless you specify. We quote 10.6 µm, dual-band (10.6 + 633 nm), or a camera band. Write the wavelengths.

Yes. Gloves, no dry grind, SDS with the quote, return-for-disposal on request. SDS (PDF).

The last Korea certificate on file expired June 2024. We send the current registrar PDF on request. We will not post an expired seal as if it were live.

This desk is ZnSe material and ZnSe forms. Other crystals and coated lens catalogues belong on a different RFQ.

Quoted from Florida. Hazardous-material rules may apply. Put the ship-to country on the RFQ. Incoterms on the quote line.

Yes — PDF, DXF or STEP on the quote form. Ship-to country is required (hazmat).

KM Innovation Corp. grows the crystal in Gwangju. KM Innovation USA quotes and ships from 6621 19th Street East, Sarasota — the logistics partner facility also used by American Photonics. We are not APC’s full IR catalogue. The seller name is on the quotation. Legal notice.

Dimensions or a drawing → typically 1–2 working days from the Florida desk. Incomplete grade / size / qty / country is what slows it down.