Somboon Advance Technology Public Company Limited manufactures and sells automotive parts for pickup trucks, passenger cars, and agricultural machinery in Thailand. It operates through two segments: Axles and Trunnion Shafts, and Other Auto Parts and Others. The company offers a range of products including exhaust manifolds, camshafts, flywheels, stabilizer bars, brake discs, coil springs, leaf springs, brake drums, and axle shafts, as well as tractor and combine harvester parts. It also rents and invests in real estate, and researches, designs, develops, imports, and sells electric car propulsion structures and batteries. The company serves original equipment manufacturers and replacement equipment manufacturers, and exports worldwide to Asia-Pacific, South America, and Europe. Founded in 1995, it is headquartered in Samut Prakan, Thailand.
EV local-content tax push and Chinese investment lift Thai auto parts outlook
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Chinese EV investment wave Four Chinese tech and auto giants plan to invest 70 billion baht in Thailand, including EV production and R&D. This should boost demand for Thai auto parts, helping Somboon Advance Technology (SAT) as a local supplier.
This is a major new demand driver for SAT's core business.
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EV excise tax to favor local parts The EV board approved a plan to tax fully imported EVs higher and locally made EVs lower, based on use of Thai parts. This encourages carmakers to buy more local parts, benefiting SAT over time.
This policy directly supports SAT's sales to EV makers and is a key new regulatory catalyst.
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30% tax on imported EVs expected The government may impose a 30% excise tax on fully imported EVs, with a decision due by September. This would push EV makers to build factories in Thailand and source parts locally, a medium-term positive for SAT.
This is the latest concrete step in the EV tax plan, reinforcing the local-content theme.
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US tariffs: auto parts exempt, but risks remain New US tariffs under Section 301 impose a 12.5% levy on some Thai exports, but auto parts like SAT's are exempt under Section 232. Still, broader export pressure and possible future tariffs could weigh on sentiment.
This is a counterweight: it shows a risk that could offset positive drivers, though SAT is directly shielded.
Q3 2026
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EV local-content tax push and Chinese investment lift Thai auto parts outlook
▲
Chinese EV investment wave Four Chinese tech and auto giants plan to invest 70 billion baht in Thailand, including EV production and R&D. This should boost demand for Thai auto parts, helping Somboon Advance Technology (SAT) as a local supplier.
This is a major new demand driver for SAT's core business.
▲
EV excise tax to favor local parts The EV board approved a plan to tax fully imported EVs higher and locally made EVs lower, based on use of Thai parts. This encourages carmakers to buy more local parts, benefiting SAT over time.
This policy directly supports SAT's sales to EV makers and is a key new regulatory catalyst.
▲
30% tax on imported EVs expected The government may impose a 30% excise tax on fully imported EVs, with a decision due by September. This would push EV makers to build factories in Thailand and source parts locally, a medium-term positive for SAT.
This is the latest concrete step in the EV tax plan, reinforcing the local-content theme.
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US tariffs: auto parts exempt, but risks remain New US tariffs under Section 301 impose a 12.5% levy on some Thai exports, but auto parts like SAT's are exempt under Section 232. Still, broader export pressure and possible future tariffs could weigh on sentiment.
This is a counterweight: it shows a risk that could offset positive drivers, though SAT is directly shielded.
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Floods in Chonburi and Rayong Halt Auto Production; STANLY, SAT, AH at Risk
Flooding in Chonburi and Rayong, where accumulated rainfall exceeded 320 mm over three days, has left suppliers unable to deliver parts on a just-in-time basis, forcing automakers to temporarily halt production. Honda suspended operations at its Prachinburi and Ayutthaya plants from October 2 to 6, 2026, and will resume production on October 7, adding shifts to make up lost output. Toyota halted three plants, Samrong, Ban Pho and Gateway, as well as Toyota Auto Works, at least through October 2, describing the move as a temporary stoppage while it waits for transport routes to recover rather than a structural capacity cut. The Federation of Thai Industries estimates damage to the automotive supply chain of at least 1,018 million baht and is maintaining its 2026 vehicle production target of 1.45 million units. Krungsri Securities views the impact as slightly negative in the short term, expecting the two major automakers to lose roughly one week of October output, though most of it should be recovered in November and December through added shifts, making the effect a shift in production rather than a permanent loss. However, overtime costs and freight expenses could pressure gross profit margins in the fourth quarter of 2026. STANLY is seen as the most affected because of its heavy reliance on Honda, which accounts for 33% of its revenue, while SAT and AH are expected to be affected indirectly through overall industry output. The sector view remains bearish.
7203.JP · Supply · Negative Toyota halted three plants plus Toyota Auto Works at least through October 2 while waiting for transport routes to recover.
7267.JP · Supply · Negative Honda suspended operations at its Prachinburi and Ayutthaya plants from October 2 to 6, 2026, because suppliers could not deliver parts.
STANLY.BK · Supply · Negative STANLY is seen as the most affected due to heavy reliance on Honda, which accounts for 33% of its revenue, after Honda halted plants.
AH.BK · Supply · Negative AH is expected to be affected indirectly through overall industry output as floods halt auto production and parts deliveries.
SAT.BK · Supply · Negative SAT is expected to be affected indirectly through overall industry output as floods halt auto production and parts deliveries.
Government Weighs 30% Excise Tax on Fully Imported EVs, Decision Expected by September
The government is in discussions with the automotive industry to finalise the excise tax rate for electric vehicles, with a decision expected within September. A rate of around 30% may be levied on fully imported EVs, aimed at encouraging manufacturers to set up production bases in Thailand and expand the domestic supply chain. These details are part of a plan that the National Electric Vehicle Policy Committee, or EV Board, agreed on in principle last week, which proposes a three-tier excise tax on EVs: fully imported cars face the highest rate, cars produced in Thailand face the lowest rate, and cars assembled domestically but still relying on some imported parts face the middle rate. Dao Securities views this as positive for the Thai automotive industry and the automotive sector over the medium to long term, given the opportunity to expand the share of auto parts sales to EV makers that set up production bases in Thailand. Currently, the revenue share from EV parts remains low, with AH at around 5%, while SAT still has a very small share. For the automotive sector, the brokerage maintains an Underweight investment weighting, while for SAT it recommends a "hold" rating with a target price of 16.50 baht.
AH.BK · Demand · Positive The three-tier EV excise tax encourages EV makers to build production bases in Thailand, expanding opportunities for AH's auto parts sales to EV makers (currently ~5% of revenue).
SAT.BK · Demand · Positive The EV excise tax plan to localize EV production in Thailand could expand SAT's auto parts sales to EV makers, though its current EV parts share is still very small.
AH says EV tax boost supports local parts, eyes new orders in H2 2026
Mr. Yeap Su Chuan, Executive Chairman of Aapico Hitech Public Company Limited, or AH, said the government's increase in import taxes on electric vehicles is aimed at encouraging operators to set up production bases in Thailand, which will benefit domestic auto parts manufacturers. AH is ready to produce parts for EV cars immediately, because many key components such as body structures, wheels and seats remain similar to those of conventional combustion-engine cars. However, receiving orders from new car models takes at least 12 months before parts delivery can begin. For the outlook in the second half of 2026, the business in Thailand has received new product orders worth a total of about 100 million baht, similar to the business in Portugal, which has begun producing parts under new orders. Meanwhile, the car dealership business in Malaysia remains a key growth driver, supported by strong Proton sales from new EV models. Yuanta Securities (Thailand) Company Limited said the Electric Vehicle Policy Committee approved in principle a restructuring of the excise tax on electric vehicles, divided into three tiers based on the level of investment, production and use of local content in Thailand: the lowest tax rate for domestic manufacturers using a high proportion of Thai parts, a middle rate for importers who enter to test the market and have plans to produce in Thailand, and the highest rate for importers selling without plans to invest in the country. It views this as a positive factor for Thai auto parts makers including AH, SAT and STANLY over the medium to long term, and expects AH's operating results in the second half of 2026 to recover continuously both half-on-half and year-on-year, driven by its cost-control strategy for selling and administrative expenses, and expects orders from new car models to come in the third quarter of 2026. It therefore raised its 2026 full-year profit forecast by 13% to 841 million baht, up 14% year-on-year, and its 2027 forecast by 15% to 908 million baht, up 8% year-on-year. It also upgraded its recommendation to "Buy" and raised its 2027 base valuation from 16.80 baht to 19.20 baht.
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AH.BK · Demand · Positive AH has secured new product orders worth about 100 million baht in Thailand for H2 2026, with Portugal also starting production under new orders.
AH.BK · Tariff · Positive Thailand's higher EV import taxes and excise restructuring favor local parts makers, and AH says it is ready to produce EV parts immediately.
Proton Holdings · Demand · Positive Strong Proton sales from new EV models are cited as the key growth driver for AH's Malaysian car dealership business.
SAT.BK · Tariff · Positive Yuanta names SAT among Thai auto parts makers benefiting from the EV excise tax restructuring favoring local content.
STANLY.BK · Tariff · Positive Yuanta names STANLY among Thai auto parts makers benefiting from the EV excise tax restructuring favoring local content.
SAT expects 8% profit growth this year, high dividend yield of 10.2%, target at 18.80 baht
Yuanta Securities maintains a "Buy" recommendation on SAT, or Somboon Advance Technology Public Company Limited, keeping its 2027 fundamental value at 18.80 baht, based on a 5-year average PER of 9.50 times. This follows the company's expectation that 2026 profit will grow 8% from the previous year to 792 million baht. Although revenue is expected to slow in line with the Federation of Thai Industries' car production target of 1.45 million units, down 0.4% from the previous year, it is supported by cost control and increased capacity utilization, rising from around 65% in the second quarter of 2026 to more than 70-75% in the second half of the year, driven by the recovery of the agricultural machinery business after Kubota relaxed credit conditions. Meanwhile, the company is in the process of securing new orders under LOIs worth around 300-400 million baht, which will gradually contribute to revenue in 2027-2028. It is also expected to pay an annual dividend of 1.65 baht per share, representing a yield of approximately 10.2%.
SAT Hopes for Recovery in Second Half; Broker Cites Orders and New Products as Support
Finansia Syrus Securities (FSS) expects the operating performance of Somboon Advance Technology (SAT) in the second half of 2026 to be supported by recovering orders and gradual revenue recognition from new products over the next 12 months, despite high raw material costs and potentially higher tariffs acting as headwinds. FSS maintains its normal profit growth forecasts for 2026-2028 at 7%, 6%, and 5%, respectively, with a target price of 16.70 baht and a "Hold" recommendation. It also expects SAT to offer a dividend yield of approximately 6-7% per year.
Yuanta picks SAT as top auto parts stock, poised to benefit from government's plan to raise EV import taxes
The government is considering restructuring the excise tax for electric vehicles, with a plan to impose higher tax rates on imported EVs that have no production base in Thailand. Meanwhile, manufacturers that set up factories and use domestic production networks will receive more benefits. The proposal is expected to be submitted to the cabinet meeting by September 2026. Auto parts manufacturers have proposed increasing the tax differential between imported EVs and domestically produced EVs to at least 30 to 50 percent, up from the current gap of about 8 percent. Yuanta Securities Thailand views this as a positive factor for auto parts stocks, especially SAT, which is the top pick in the sector, and maintains a buy recommendation with a target price of 18.80 baht per share.
Yuanta advises defensive stance on auto stocks, picks SAT as top pick, expects 10% yield
Yuanta Securities recommends a defensive strategy for auto stocks, selecting SAT as the standout pick with an expected dividend yield of 10% at the current price. The research team notes that the Federation of Thai Industries reported June vehicle production at 120,391 units, down 8% year-on-year, with production for exports falling 20%, while domestic sales rose 17% driven by battery electric vehicles. The production target for 2026 has been revised down to 1.45 million units, a 3% decline from the previous year. The research team expects combined normalized profit for AH, SAT, and STANLY in the second quarter of 2026 to total 633 million baht, down 35% quarter-on-quarter but flat year-on-year. Although revenue is projected to drop 7% in line with a 10% decline in vehicle production, cost reductions are helping to support a recovery in profit margins. The outlook for the second half of 2026 anticipates a recovery from a low base and new model launches, with the group's 2026 profit forecast at 3.578 billion baht, up 6% year-on-year. However, risks remain from heavy reliance on internal combustion engine vehicles. The research team maintains an underweight rating on the auto parts sector, as the recovery is constrained by global economic uncertainty, energy cost risks, and the structural transition from internal combustion engines to electric vehicles, from which Thai parts makers are still seeing limited benefits.
SAT.BK · Capital · Positive Yuanta picks SAT as top pick with expected 10% dividend yield, and expects profit recovery in H2 2026.
AH.BK · Demand · Negative Vehicle production down 8% YoY, production target revised down 3%, and auto parts sector underweight rating due to limited EV benefits.
STANLY.BK · Demand · Negative Combined normalized profit for AH, SAT, STANLY expected down 35% QoQ; sector underweight rating.
Asia Plus says new US tariff measures to pressure Thai exports in second half
Asia Plus Securities' research unit says new US tariff measures under Section 301, one of the risks to Thai exports in the second half of the year, will slow exports because Thailand faces a 12.5% levy, higher than some ASEAN peers like the Philippines and Malaysia, potentially reducing competitiveness. Thailand also runs a growing surplus with the US, and markets must watch for surplus-production tariffs the US has yet to announce, which will pressure the Thai economy's export sector. Product groups hit by the 12.5% tariff include pet food, processed food, and beverages, covering stocks such as AAI, ITC, PLUS, TU, and COCOCO, as well as electronics, including HANA, DELTA, KCE, and CCET. Major Thai goods exempted from the 12.5% tariff are oil, gas, and fertiliser, which the US imports heavily, easing pressure on refinery and oil stocks like PTT, PTTEP, TOP, IRPC, and BCP, and goods already under Section 232, such as automobiles, steel, aluminium, and copper, which eases pressure on processed steel and steel pipe stocks like PAP, TMT, and SAM, and auto parts stocks like AH and SAT. The Commerce Ministry reported that Thai exports in June 2026 grew 20.8% year-on-year, above the market forecast of 15.2%, while imports rose 50.3%, above the 35.8% forecast, resulting in a trade deficit of 6.565 billion US dollars. Standout products included pet food, up 22.3%, expanding for a tenth straight month; rubber, up 12.5%, returning to growth for the first time in 14 months; and processed chicken, up 6.1%, expanding for a seventh consecutive month.
Four Chinese giants set to invest 70 billion baht in Thailand, boosting industrial estates, automotive, parts, and energy stocks
Asia Plus Securities research reports that four major Chinese technology and automotive companies are preparing to expand investments in Thailand worth a combined 70 billion baht this year, focusing on two future industries: AI and data center technology, where Innolight Technology and Eoptolink Technology will expand production bases for optical transceivers to support AI and cloud data center growth, and the electric vehicle industry, where Xiaomi Corporation is considering setting up an EV production base and research and development center in Thailand, while Changan Automobile is moving ahead with expanding production capacity from 100,000 to 200,000 units per year by 2030, along with establishing a regional headquarters and an EV R&D center. Stocks expected to benefit include industrial estate groups such as AMATA, WHA, ROJNA, and PIN; automotive groups such as AH, SAT, and STANLY; parts groups such as HANA, DELTA, KCE, and SMT; and energy groups such as GULF.
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000625.CS · Demand · Positive Changan Automobile is expanding production capacity in Thailand from 100k to 200k units by 2030, indicating strong demand growth.
1810.HK · Demand · Positive Xiaomi is considering setting up an EV production base and R&D center in Thailand, expanding its manufacturing footprint.
300502.CS · Demand · Positive Eoptolink Technology will expand production base for optical transceivers in Thailand to support AI and cloud data center growth.
AMATA.BK · Demand · Positive Chinese giants' investment boosts demand for industrial estates, benefiting Amata as a key industrial estate developer.
WHA.BK · Demand · Positive Chinese giants' investment in Thailand boosts demand for industrial estates, benefiting WHA as a major industrial estate developer.
DELTA.BK · Demand · Positive Increased EV and data center investments in Thailand drive demand for electronic components, benefiting Delta Electronics.
Chinese capital of 70 billion baht set to invest in Thailand in EV and AI data centers
Four major technology and automotive companies from China are preparing to expand their investments in Thailand, totaling 70 billion baht within this year, focusing on the electric vehicle industry and AI and data center technology, according to a report by Asia Plus Securities. In the EV sector, Xiaomi Corporation is considering expanding its EV production base and establishing a research and development center in Thailand, while Changan Automobile is moving forward with expanding production capacity from 100,000 to 200,000 units per year by 2030, along with setting up a regional headquarters and an EV R&D center. In the AI and data center group, Innolight Technology is preparing to build a third factory in Saraburi province to expand production of optical modules, and Eoptolink Technology is preparing to expand production capacity at its factories in Chonburi and Rayong. Stocks expected to benefit include industrial estate groups such as Amata, WHA, Rojana, and Pin, automotive groups such as AAPICO Hitech, Somboon Advance Technology, and Stanley Electric, component groups such as Hana Microelectronics, Delta Electronics, KCE Electronics, and Stars Microelectronics, and energy groups such as Gulf Energy Development.
300502.CS · Demand · Positive Eoptolink Technology is expanding production capacity at its factories in Chonburi and Rayong, indicating increased demand for its optical modules.
AMATA.BK · Demand · Positive Chinese companies investing in EV and AI data centers will need industrial estates, boosting Amata's land sales.
PIN.BK · Demand · Positive Chinese companies expanding factories in Thailand boost demand for industrial park space, directly benefiting Pin.
ROJNA.BK · Demand · Positive Chinese companies expanding factories in Thailand boost demand for industrial park space, directly benefiting Rojana.
WHA.BK · Demand · Positive WHA is an industrial estate developer that will host new factories from Chinese companies.
000625.CS · Capital · Positive Changan Automobile is expanding production capacity and setting up regional HQ and R&D center in Thailand.