Editing Openai/69109937-2170-8005-9304-da49840bb5b9 (section)

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SPX was originally the joint venture between POET Technologies and Sanan IC, formed in 2020 to bring the Optical Interposer into commercial production.
It ceased to be POET’s active manufacturing base in 2024. The JV was effectively wound down after ownership and strategic alignment issues; POET moved the equipment and process knowledge elsewhere.

===== POET now operates via a multi-partner foundry and packaging model, with production and backend spread across several facilities: =====

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So the manufacturing picture today is distributed but coordinated, no longer centred on a single JV like SPX.

That shift actually reduced geopolitical and single-point-of-failure risk, albeit at the cost of more complex logistics.