Giantec Semiconductor vs Xian LONGi Silicon Materials: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

Giantec Semiconductor Corp (688123.CG)

Q3 202627 Jul – 15 Aug 2026

▼2▲1

Giantec's profit surge is one-off; core business weakens as HK listing refiled

Core profit falls nearly 50% despite headline gain First-half net profit jumped 156% to 525 million yuan, but that came almost entirely from a 432-471 million yuan paper gain on SJ Semiconductor shares. Strip that out and core profit fell 47.3% to 93.47 million yuan, showing the actual chip business is weakening.
This is the key counterweight: the headline profit is not from operations, so investors should not read it as business strength.
Controlling shareholder camp cashed out over 1 billion yuan Entities tied to actual controller Chen Zuotao sold 4.12 million shares in late 2025 and April 2026, raising over 1 billion yuan. Chen was also publicly reprimanded twice by the Shenzhen exchange over related-party issues at another company, a governance red flag.
Insider selling and governance concerns weigh on investor confidence and can pressure the stock.
Hong Kong IPO refiled after first prospectus lapsed The initial Hong Kong listing application lapsed in July, but the company quickly refiled on July 28. A successful H-share listing could bring fresh capital and liquidity, but the lapse and refiling also signal uncertainty and extra cost.
The refiling is a new capital-markets event that could affect financing and sentiment, though the outcome is still uncertain.
Memory chip shipments grow in autos and industrial control The interim report showed rapid shipment growth for high-reliability memory chips used in automotive electronics and industrial control. This is the real operating bright spot, though it was not enough to stop core profit from falling.
It shows where actual business demand is improving, giving a fair picture alongside the weak core profit.

August 202627 Jul – 15 Aug 2026

▼2▲1

Giantec's profit surge is one-off; core business weakens as HK listing refiled

Core profit falls nearly 50% despite headline gain First-half net profit jumped 156% to 525 million yuan, but that came almost entirely from a 432-471 million yuan paper gain on SJ Semiconductor shares. Strip that out and core profit fell 47.3% to 93.47 million yuan, showing the actual chip business is weakening.
This is the key counterweight: the headline profit is not from operations, so investors should not read it as business strength.
Controlling shareholder camp cashed out over 1 billion yuan Entities tied to actual controller Chen Zuotao sold 4.12 million shares in late 2025 and April 2026, raising over 1 billion yuan. Chen was also publicly reprimanded twice by the Shenzhen exchange over related-party issues at another company, a governance red flag.
Insider selling and governance concerns weigh on investor confidence and can pressure the stock.
Hong Kong IPO refiled after first prospectus lapsed The initial Hong Kong listing application lapsed in July, but the company quickly refiled on July 28. A successful H-share listing could bring fresh capital and liquidity, but the lapse and refiling also signal uncertainty and extra cost.
The refiling is a new capital-markets event that could affect financing and sentiment, though the outcome is still uncertain.
Memory chip shipments grow in autos and industrial control The interim report showed rapid shipment growth for high-reliability memory chips used in automotive electronics and industrial control. This is the real operating bright spot, though it was not enough to stop core profit from falling.
It shows where actual business demand is improving, giving a fair picture alongside the weak core profit.

Latest27 Jul – 15 Aug 2026

▼2▲1

Giantec's profit surge is one-off; core business weakens as HK listing refiled

Core profit falls nearly 50% despite headline gain First-half net profit jumped 156% to 525 million yuan, but that came almost entirely from a 432-471 million yuan paper gain on SJ Semiconductor shares. Strip that out and core profit fell 47.3% to 93.47 million yuan, showing the actual chip business is weakening.
This is the key counterweight: the headline profit is not from operations, so investors should not read it as business strength.
Controlling shareholder camp cashed out over 1 billion yuan Entities tied to actual controller Chen Zuotao sold 4.12 million shares in late 2025 and April 2026, raising over 1 billion yuan. Chen was also publicly reprimanded twice by the Shenzhen exchange over related-party issues at another company, a governance red flag.
Insider selling and governance concerns weigh on investor confidence and can pressure the stock.
Hong Kong IPO refiled after first prospectus lapsed The initial Hong Kong listing application lapsed in July, but the company quickly refiled on July 28. A successful H-share listing could bring fresh capital and liquidity, but the lapse and refiling also signal uncertainty and extra cost.
The refiling is a new capital-markets event that could affect financing and sentiment, though the outcome is still uncertain.
Memory chip shipments grow in autos and industrial control The interim report showed rapid shipment growth for high-reliability memory chips used in automotive electronics and industrial control. This is the real operating bright spot, though it was not enough to stop core profit from falling.
It shows where actual business demand is improving, giving a fair picture alongside the weak core profit.

Xian LONGi Silicon Materials Corp (601012.CG)

Q3 202614 Jul – 11 Aug 2026

▲3▼1

LONGi's H1 loss deepens, but policy and new tech offer hope

H1 loss forecast LONGi expects a first-half loss of 3.4–3.8 billion yuan, part of a sector-wide loss exceeding 13 billion yuan. This confirms the industry's severe oversupply and price wars, weighing on the stock.
Directly explains the company's weak financial performance and negative sentiment.
Excise tax on solar cells China will impose a 2% excise tax on solar cells from April 2027, rising to 4% in 2028. The tax aims to curb overproduction and price wars, which could help LONGi by reducing industry oversupply.
New regulation that could improve industry dynamics and benefit LONGi.
Mandatory standards and anti-cutthroat policies Three mandatory national standards for solar products take effect in January 2027, accelerating the exit of outdated capacity. Combined with anti-cutthroat competition policies, this may lead to a policy bottom and market bottom, supporting LONGi's long-term recovery.
Shows regulatory efforts to rebalance supply and demand, a key driver for LONGi's future profitability.
Perovskite investment LONGi plans to invest 203 million yuan in a 100MW perovskite tandem cell pilot line. This next-generation technology could enhance efficiency and open new markets like space photovoltaics, positioning LONGi for future growth.
Highlights LONGi's innovation and capital allocation to advanced technology, a potential long-term catalyst.

July 202614 Jul – 11 Aug 2026

▲3▼1

LONGi's H1 loss deepens, but policy and new tech offer hope

H1 loss forecast LONGi expects a first-half loss of 3.4–3.8 billion yuan, part of a sector-wide loss exceeding 13 billion yuan. This confirms the industry's severe oversupply and price wars, weighing on the stock.
Directly explains the company's weak financial performance and negative sentiment.
Excise tax on solar cells China will impose a 2% excise tax on solar cells from April 2027, rising to 4% in 2028. The tax aims to curb overproduction and price wars, which could help LONGi by reducing industry oversupply.
New regulation that could improve industry dynamics and benefit LONGi.
Mandatory standards and anti-cutthroat policies Three mandatory national standards for solar products take effect in January 2027, accelerating the exit of outdated capacity. Combined with anti-cutthroat competition policies, this may lead to a policy bottom and market bottom, supporting LONGi's long-term recovery.
Shows regulatory efforts to rebalance supply and demand, a key driver for LONGi's future profitability.
Perovskite investment LONGi plans to invest 203 million yuan in a 100MW perovskite tandem cell pilot line. This next-generation technology could enhance efficiency and open new markets like space photovoltaics, positioning LONGi for future growth.
Highlights LONGi's innovation and capital allocation to advanced technology, a potential long-term catalyst.

Latest14 Jul – 11 Aug 2026

▲3▼1

LONGi's H1 loss deepens, but policy and new tech offer hope

H1 loss forecast LONGi expects a first-half loss of 3.4–3.8 billion yuan, part of a sector-wide loss exceeding 13 billion yuan. This confirms the industry's severe oversupply and price wars, weighing on the stock.
Directly explains the company's weak financial performance and negative sentiment.
Excise tax on solar cells China will impose a 2% excise tax on solar cells from April 2027, rising to 4% in 2028. The tax aims to curb overproduction and price wars, which could help LONGi by reducing industry oversupply.
New regulation that could improve industry dynamics and benefit LONGi.
Mandatory standards and anti-cutthroat policies Three mandatory national standards for solar products take effect in January 2027, accelerating the exit of outdated capacity. Combined with anti-cutthroat competition policies, this may lead to a policy bottom and market bottom, supporting LONGi's long-term recovery.
Shows regulatory efforts to rebalance supply and demand, a key driver for LONGi's future profitability.
Perovskite investment LONGi plans to invest 203 million yuan in a 100MW perovskite tandem cell pilot line. This next-generation technology could enhance efficiency and open new markets like space photovoltaics, positioning LONGi for future growth.
Highlights LONGi's innovation and capital allocation to advanced technology, a potential long-term catalyst.