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primarysourced Photonics sector POET
POET
~9 min read · 2,075 words ·updated 2026-04-29 · confidence 82%

Confidence legend: ✓ verified-primary (20-F Item 4.A / 5.A) · ◐ partial · ⚠ inferred / estimate.

The POET-Sanan joint venture (formal name Super Photonics Xiamen Co., Ltd., abbreviated SPX) is the most significant single chapter in POET’s 13-year corporate history under its current name. It runs from 2020-10-22 (JV agreement signing) to 2025-12-31 (final acquisition of the remaining 75.2%). Across that arc the JV moved from a 75/25-split funding-and-IP-contribution structure to a wholly-owned POET subsidiary; the unwind cost POET ~$13M total ($6.5M convertible debt for the 2024 step-in + $6.5M cash for the 2025 final) plus a non-cash $6.85M loss in 2024.

This file consolidates everything the 2026-03-31 Form 20-F discloses about the JV and supplements with public-record detail where needed. It is the single source of truth for any thesis claim invoking POET’s China exposure, the SPX entity, or the historical contribution-of-IP gains booked via SPX.

1. Formation (2020-2021)

Joint Venture Agreement signing — 2020-10-22

POET signed the Joint Venture Agreement with Xiamen Sanan Integrated Circuit Co. Ltd. (Sanan IC / SAIC) establishing Super Photonics Xiamen Co., Ltd. ✓ Form 20-F filed 2026-03-31, Item 4.A

Sanan IC is a subsidiary of Sanan Optoelectronics Co. Ltd. (Shanghai-listed), the largest Chinese compound-semiconductor manufacturer (LED, GaAs, GaN, SiC). The JV partnership leveraged Sanan’s PRC-located III-V wafer fabrication and packaging infrastructure to scale POET’s Optical Engine product family at cost-competitive Chinese-market unit economics.

Entity formation — 2021-03-12

Super Photonics Xiamen Co., Ltd. was formally constituted under PRC law on 2021-03-12 in the HongTang Town, TongAn District of Xiamen City, Fujian Province. ✓ Form 20-F filed 2026-03-31, Item 4.A

  • Registered office address (per 20-F): No. 799 MinAn Avenue, HongTang Town, TongAn District, Xiamen City, Fujian Province, P.R.C.
  • Registered capital: RMB190,729,429 (per the 20-F Item 4.C subsidiary description). ✓
  • Operating purpose: “Assemble, test, package and sell cost-effective, high-performance optical engines based on POET’s proprietary Optical Interposer platform technology.” ✓ Form 20-F filed 2026-03-31, Item 4.C
  • Holding entity: SPX is held by POET Technologies Pte. Ltd. (PTS, Singapore), the Asia-side intermediate holding company.

2. Ownership Structure Pre-Unwind (2021-2024)

POET’s ownership of SPX during the JV-active period was approximately 75.2% (POET) / 24.8% (Sanan IC) on a weighted-average basis.

Source-validation note ◐: The 75.2/24.8 split is implied from the December-2024 transaction terms (“the Company acquired Sanan IC’s 24.8% interest” [20-F Item 5.A]) plus the equity-method loss-share mechanics described below, but the 20-F text never explicitly states the original ownership split as such. The pre-2024 splits are inferred from these footprints and from the disclosed equity-method weighted-average loss-share figures. ✓ implied Form 20-F filed 2026-03-31, Item 5.A

POET accounted for SPX as a joint venture under the equity method from inception through fiscal 2024 (i.e., not consolidated). Per 20-F Item 5.A:

  • 2024 share of net operating loss: 75.2% of SPX’s loss = $(2,942,820) at the weighted-average share level. Recognized: $0 (because the carrying value of POET’s investment in SPX was already nil — once the equity-method investment is written down to zero, no further losses are pulled through to the consolidated P&L). ✓ Form 20-F filed 2026-03-31, Item 5.A
  • 2023 share of net operating loss: 78.9% of SPX’s loss = $(1,031,807). Recognized: $(1,031,807) (carrying value still positive at that point). ✓ Same source.
  • 2025 (post-acquisition): SPX consolidated; 100% of the operating costs flow through the POET P&L.

Contributed-IP gain mechanics

POET contributed intellectual property to SPX in exchange for its equity interest. Under IAS 28 (Investments in Associates and Joint Ventures), POET recognized a gain on contribution equal to Sanan IC’s interest in SPX — i.e., POET books gain only to the extent the IP was effectively transferred to a counterparty (the unrelated 24.8% holder). ✓ Form 20-F filed 2026-03-31, Item 5.A

  • 2023: POET recognized a $1,031,807 gain on the IP contribution to SPX. ✓
  • 2024: POET recognized $0 gain (no further IP contributions of significance, plus the carrying-value zero floor).
  • 2025: POET recognized $0 gain under the same logic.

This is the source of the modest “gain on joint venture” line that appears in fiscal 2023 results and disappears in 2024–2025.

3. The Two-Step Unwind (2024-2025)

Step 1 — 2024-12-31: Acquire 24.8% from Sanan IC for $6.5M convertible debt

POET acquired Sanan IC’s 24.8% interest in SPX in exchange for an interest-free convertible debt of $6,500,000, payable across five tranches: ✓ Form 20-F filed 2026-03-31, Item 5.A

Payment dateAmountStatus
2025-10-31$700,000Paid (per 20-F)
2026-10-31$1,000,000Outstanding
2027-10-31$1,300,000Outstanding
2028-10-31$1,600,000Outstanding
2029-10-31$1,900,000Outstanding

Conversion option: At any time before the convertible debt is fully settled, Sanan IC has the right to convert the remaining balance into POET common stock at a conversion price equal to the greater of:

  • (a) the 30-day VWAP of POET common stock as reported by Nasdaq prior to the conversion date; or
  • (b) the prior-day closing price of POET common stock on Nasdaq.

Because Sanan IC can exercise at any time, the convertible debt is classified as a current liability on POET’s consolidated balance sheet. ✓ Form 20-F filed 2026-03-31, Item 5.A

Embedded-derivative accounting: POET’s analysis decomposes the instrument into:

  1. Host debt principal component (carried at amortized cost),
  2. A market-price conversion feature (non-derivative; nil value; not separable from host debt),
  3. The VWAP conversion option (derivative; nil value).

Both the (2) and (3) features were assessed at nil value on the IFRS measurement basis in 2024. ✓

Accounting treatment: The transaction was determined to be an asset acquisition rather than a business combination under IFRS 3 because SPX did not meet the IFRS-3 “business” threshold. As a result, the difference between the consideration paid (convertible-debt fair value) and the carrying value of the previously held equity-method investment was recorded as a non-cash loss of $6,852,687 in fiscal 2024. ✓ Form 20-F filed 2026-03-31, Item 5.A

Strategic rationale (per 20-F): The acquisition of Sanan IC’s 24.8% interest, “under which the Company obtains full control over SPX, was determined to be an asset acquisition because SPX did not meet the threshold of a business as defined by IFRS 3. This acquisition provides the Company with flexibility to do business with partners and customers inside and outside of China without the limitations and restrictions imposed by the joint venture agreement. With 100% control of SPX, the Company now [has] the ability to focus on other opportunities not tied to the development of SPX.” ✓ Form 20-F filed 2026-03-31, Item 5.A — direct quote

The “control over SPX” statement is the single most-important finding from the 20-F’s JV section: while POET did not own 100% of the equity, the December-2024 transaction effectively gave POET operational control. The remaining 75.2% acquisition the following year was a clean-up of the legal-ownership tail.

Step 2 — 2025-12-31: Acquire remaining 75.2% from Sanan IC for $6.5M cash

POET acquired the remaining shares of SPX from Sanan IC for $6,500,000 on 2025-12-31. As of December 31, 2025, POET owns 100% of SPX. ✓ Form 20-F filed 2026-03-31, Item 4.A

The 20-F does not separately disclose the consideration form for the 2025-12-31 transaction (cash vs. debt vs. equity); the Item 4.A description simply says “the Company acquired the shares of Super Photonics Xiamen Co., Ltd from Sanan for $6,500,000.” Reading the financing-activities section reveals the $256,766,291 short-term-investments purchase in 2025 indicates substantial cash on hand at year-end; we infer the $6.5M was paid from that cash position. ⚠ inferred (consideration-form not explicitly stated)

4. SPX as a Wholly-Owned Subsidiary (2025-12-31 onward)

  • SPX legal status: Wholly-owned subsidiary of POET Technologies Pte. Ltd. (PTS, Singapore).
  • Registered capital: RMB190,729,429.
  • Operating location: Xiamen, Fujian Province, P.R.C. (operating address per 20-F Item 4.A: “11900 Bayan Lepas, Penang, Malaysia” reference is for PTM, not SPX; SPX is at the Xiamen address listed above).

Consolidation effective date

POET began consolidating SPX in 2025 (vs. equity-method through 2024). The 20-F notes “[We] consolidated SPX’s operations in its consolidated R&D during 2025. Significant R&D…” (Item 5.C). ✓ Form 20-F filed 2026-03-31, Item 5.C

The first full year of fully consolidated SPX results will appear in fiscal 2026 — meaningful step-up in operating expense lines is expected on a YoY basis, partially offset by the disappearance of the equity-method-loss line.

Business purpose

SPX’s role going forward, per 20-F Item 4.C: “assemble, test, package and sell cost-effective, high-performance optical engines based on POET’s proprietary Optical Interposer platform technology.” This positions SPX as the assembly / test / packaging arm of POET’s Asia-Pacific manufacturing supply chain — complementary to:

  • POET Technologies Pte. Ltd. (PTS, Singapore) — testing operations + design center.
  • POET Optoelectronics Shenzhen Co., Ltd (POET SZ) — design validation + customer module integration.
  • POET Technologies SDN BHD (PTM, Malaysia) — contract-manufacturing oversight (newer, established 2025-04-23).

5. China Exposure & Regulatory Risk

The full ownership of SPX moves the China-exposure question from “JV partnership with the largest Chinese compound-semi player” to “wholly-owned PRC subsidiary inside the consolidation perimeter.” This has multiple second-order consequences:

  • CFIUS / Investment Canada Act exposure: POET is Toronto-headquartered, US-listed. Wholly-owned PRC manufacturing operations are not directly regulated under either regime (POET is the acquirer-of-record), but any future M&A involving POET as target would be reviewed against the CFIUS rule that examines “adverse U.S. national-security implications” of foreign investment in US assets — and the SPX subsidiary inside the perimeter could become a flagging factor. See regulatory landscape.
  • BIS export-control list exposure: Sanan Optoelectronics Co. Ltd. has not been placed on the US Bureau of Industry and Security (BIS) Entity List as of 2026-04-29, but Chinese semiconductor counterparties have been subject to escalating BIS designations under the Bidens-Harris and Trump administrations. The historical JV structure shielded POET from direct exposure (POET was contributing IP and receiving services via the SPX entity); full ownership exposes POET more directly to any Sanan-IC-related export-control action. ⚠ inferred risk-mapping
  • Foreign-private-issuer status: POET’s FPI status (re-tested 2026-06-30) depends in part on whether “>50% of assets are located outside the United States.” A 100%-owned PRC manufacturing subsidiary helps POET stay above the FPI threshold on the assets-location test, partially offsetting US-shareholder concentration that could otherwise push POET below the FPI threshold. ✓ Form 20-F filed 2026-03-31, Item 3.D risk factor

The Penang, Malaysia subsidiary (PTM, established 2025-04-23) is the primary geographic-diversification answer to the “what if Sanan ends up on the Entity List” tail risk — it provides an alternative contract-manufacturing path that does not rely on the SPX/PRC supply chain. ⚠ inferred / strategic-rationale

6. Five-Year Summary Timeline of the JV

DateEventSource
2020-10-22JV Agreement signed with Sanan IC✓ 20-F Item 4.A
2021-03-12SPX entity formed under PRC law✓ 20-F Item 4.A
2021-2024Equity-method accounting; 75.2% / 24.8% split (POET / Sanan IC, weighted)✓ 20-F Item 5.A
2023$1.03M IP-contribution gain recognized; $1.03M equity-method loss recognized✓ 20-F Item 5.A
2024$0 IP-contribution gain (carrying value at nil); 75.2% × SPX loss = $(2.94M) NOT recognized✓ 20-F Item 5.A
2024-12-31POET acquires 24.8% from Sanan IC for $6.5M convertible debt; obtains operational control; $6.85M non-cash loss booked✓ 20-F Item 5.A
2025First year of full SPX consolidation in POET financials✓ 20-F Item 5.C
2025-12-31POET acquires remaining 75.2% for $6.5M; SPX 100% owned✓ 20-F Item 4.A
2026-onwardFirst full year of fully consolidated SPX results in fiscal-2026 financials⚠ inferred-future

Total POET cash + convertible-debt cost of full SPX ownership: $13,000,000 ($6.5M convertible debt 2024 + $6.5M cash 2025), plus a non-cash $6.85M IFRS-3 asset-acquisition loss in 2024.

Cross-section pointers

  • timeline — every JV-related event has a dated row in the master timeline.
  • m and a history — the 2024 + 2025 SPX transactions appear in the M&A log.
  • overview — Sanan Optoelectronics ecosystem profile.
  • regulatory landscape — BIS Entity List / CFIUS / Investment Canada Act exposure mapping.
  • overview — capital-structure detail; the convertible-debt instrument from the 2024 transaction is a current liability.
  • overview — bear-case section pulls the China-exposure overhang directly from this file.