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Other Disclosures4888STELLA PHARMA CORPORATIONPharmaceuticals

Cooperation in BNCT promotion activities at the China International Import Expo (CIIE)

Stella Pharma Corporation will cooperate with CBSH, in partnership with SUMITOMO HEAVY INDUSTRIES,LTD., in providing information and promoting BNCT at the CIIE in Shanghai, China. Through these activities, the companies aim to raise awareness of BNCT in China and strengthen collaboration with relevant organizations.

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Announced details

BNCT (boron neutron capture therapy); our pharmaceutical product for BNCT
Applicable field (uses covered by this announcement)

BNCT; pharmaceuticals; medical care; head and neck cancer

Launch date5 to 10 November 2026 (scheduled): CIIE and BNCT promotion activities. BNCT at the BNCT center operated by Pengbo has been underway since March 2026
Contract DateMaster Collaboration Agreement announced on 12 August 2026. The date on which the agreement was executed itself is Not disclosed
What the company reported numerically
Usage history

BNCT for patients with head and neck cancer began in March 2026 (cumulative number of patients: Not disclosed)

Relationship between the counterparty and the company
STELLA PHARMA CORPORATION4888
Relationship with the Company

We have entered into a collaboration agreement with CBSH and Pengbo covering the development and post-approval sales rollout of our pharmaceutical product for BNCT in mainland China. We are collaborating with SUMITOMO HEAVY INDUSTRIES,LTD. on BNCT information and promotion activities at the CIIE.

CounterpartyChina Biotech Services Holdings Limited (CBSH; Hong Kong Stock Exchange Stock Code: 8037); Pengbo (Hainan) Boron Neutron Medical Technology Co., Ltd. (Pengbo); SUMITOMO HEAVY INDUSTRIES,LTD.

CBSH has Hong Kong Stock Exchange Stock Code: 8037. Pengbo is a CBSH subsidiary that operates a BNCT center in the Bo'ao Lecheng International Medical Tourism Pilot Zone in Hainan, China. No other overview of SUMITOMO HEAVY INDUSTRIES,LTD. is provided.

Location (as indicated in this announcement)

National Exhibition and Convention Center (Shanghai), Shanghai, China; Bo'ao Lecheng International Medical Tourism Pilot Zone, Hainan, China (Hainan Island medical special zone)

Impact on Business Performance

The policy is to promote BNCT in mainland China and support the expansion of our business. The specific impact on financial results is Not disclosed

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

Official CIIE website; Ministry of Commerce of the People's Republic of China and Shanghai Municipal People's Government (CIIE organizers)

Announced details
ItemDetails
Names of Products / Services CoveredBNCT (boron neutron capture therapy); our pharmaceutical product for BNCT
CounterpartyChina Biotech Services Holdings Limited (CBSH; Hong Kong Stock Exchange Stock Code: 8037); Pengbo (Hainan) Boron Neutron Medical Technology Co., Ltd. (Pengbo); SUMITOMO HEAVY INDUSTRIES,LTD.
Counterparty overviewCBSH has Hong Kong Stock Exchange Stock Code: 8037. Pengbo is a CBSH subsidiary that operates a BNCT center in the Bo'ao Lecheng International Medical Tourism Pilot Zone in Hainan, China. No other overview of SUMITOMO HEAVY INDUSTRIES,LTD. is provided.
Relationship with the CompanyWe have entered into a collaboration agreement with CBSH and Pengbo covering the development and post-approval sales rollout of our pharmaceutical product for BNCT in mainland China. We are collaborating with SUMITOMO HEAVY INDUSTRIES,LTD. on BNCT information and promotion activities at the CIIE.
Contract DateMaster Collaboration Agreement announced on 12 August 2026. The date on which the agreement was executed itself is Not disclosed
Launch date5 to 10 November 2026 (scheduled): CIIE and BNCT promotion activities. BNCT at the BNCT center operated by Pengbo has been underway since March 2026
Applicable areaBNCT; pharmaceuticals; medical care; head and neck cancer
LocationNational Exhibition and Convention Center (Shanghai), Shanghai, China; Bo'ao Lecheng International Medical Tourism Pilot Zone, Hainan, China (Hainan Island medical special zone)
Usage historyBNCT for patients with head and neck cancer began in March 2026 (cumulative number of patients: Not disclosed)
Impact on Business PerformanceThe policy is to promote BNCT in mainland China and support the expansion of our business. The specific impact on financial results is Not disclosed
SourceOfficial CIIE website; Ministry of Commerce of the People's Republic of China and Shanghai Municipal People's Government (CIIE organizers)
Items this document does not state (7)
Contract ValueOffering priceAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleQuantitative Effects

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

This initiative is intended to raise awareness of BNCT in China and strengthen collaboration with relevant organizations, thereby promoting BNCT in mainland China and supporting the expansion of our business.

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Cooperation in BNCT promotion activities at the China International Import Expo (CIIE) | STELLA PHARMA CORPORATION (4888) timely disclosure | Komori