Masan's Tam Nhin Masan to Sell 10% of MSR, Paving Way for HoSE Listing

Overview

Tam Nhin Masan Company Limited, the controlling shareholder of Masan High-Tech Materials (UPCOM: MSR), has registered to transfer up to 110.49 million MSR shares, equal to 10% of the company’s charter capital. The move is part of an ownership restructuring approved by the board of Masan Group (HOSE: MSN) and is intended to diversify MSR’s shareholder base and support a future listing on the Ho Chi Minh Stock Exchange (HoSE).

Key Facts

• Tam Nhin Masan registered to sell up to 110,497,342 MSR shares, equivalent to 10% of Masan High-Tech Materials’ charter capital, per a transaction notice dated 28 September.
• Before the transaction, Tam Nhin Masan held more than 1.021 billion MSR shares, or 92.45% of the outstanding shares.
• If fully completed, its holding would fall to more than 911 million shares, or 82.45% of capital.
• Of the total, 55,138,174 shares (4.99%) are earmarked for strategic investor The Elmet Group Co. (NASDAQ: ELMT) under a previously signed agreement.
• A further 55,359,168 shares (5.01%) may be sold to institutional investors at a price no lower than the Elmet transaction price.
• Transaction value at par value is approximately VND 1,104.97 billion.
• The sale is scheduled to be executed by negotiated agreement between 1 October and 30 October 2026.
• The restructuring plan was approved by the MSN board under a resolution dated 24 September.

What Happened

According to the transaction notice, Tam Nhin Masan registered to transfer up to 10% of Masan High-Tech Materials to other investors. The filing states that 4.99% of the capital, or 55,138,174 shares, will go to The Elmet Group Co., a strategic investor listed on NASDAQ under the ticker ELMT, under an agreement signed earlier. The remaining 5.01%, or up to 55,359,168 shares, is reserved for institutional investors, with Masan stipulating that their price must be no lower than the price agreed with Elmet.

The restructuring was approved by the board of Masan Group Corporation (MSN), the group’s ultimate parent, in a resolution dated 24 September. The company said the transaction aims to diversify its shareholder base, increase the free-float ratio and improve MSR’s liquidity, with the goal of listing the stock on the Ho Chi Minh Stock Exchange. MSR currently trades on UPCoM.

Market Context

MSR closed at VND 53 per share on 28 September 2026, down 0.93% on volume of 46,600 shares, while parent MSN closed at VND 70,100 on 27 September. The thin trading volume reflects the structural problem the transaction targets: with a single shareholder holding more than 90% of capital, MSR’s actual free float is very limited, which constrains liquidity and complicates a move to HoSE, where listing standards require a minimum free float and shareholder diversification. The sale fits a broader pattern of Vietnamese groups restructuring subsidiary ownership to meet exchange listing criteria.

Strategic Significance

For long-term investors, the transaction is less about the VND 1,105 billion par-value proceeds than about the governance and liquidity reset it implies. Bringing in a NASDAQ-listed strategic partner such as Elmet, alongside institutional holders, creates an independent reference price for MSR and reduces the overhang risk associated with a 92% controlling stake. A successful HoSE listing would widen the eligible investor base, improve index and fund eligibility, and potentially narrow the valuation discount that UPCoM-listed subsidiaries of large groups often carry. The condition that institutional buyers pay no less than Elmet’s price also sets a floor that anchors expectations for the placement.

What to Watch

• Disclosure of the final Elmet transaction price and confirmation of the 4.99% transfer.
• Whether the full 5.01% institutional tranche is placed, or only partially filled, by 30 October 2026.
• Post-transaction free-float figures and any subsequent filings on MSR’s ownership structure.
• Formal HoSE listing application or eligibility guidance for MSR.
• Any follow-on restructuring steps at MSN level affecting its consolidated stake in Masan High-Tech Materials.