Sanan Optoelectronics vs Xian LONGi Silicon Materials: why the prices moved differently

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

Sanan Optoelectronics Co Ltd (600703.CG)

Q3 202623 Jul – 24 Sep 2026

▼3▲1

Sanan Optoelectronics hit by controller detention and first-half loss

Actual controller criminally detained Sanan's actual controller Lin Xiucheng was criminally detained on suspicion of embezzlement and misappropriation of funds. He holds no company post, and Sanan says operations are normal, but the news raises governance worries and helped push the stock down 2.81% on September 24.
This is the most recent and severe governance shock, directly weighing on investor confidence and the share price.
General manager detained, share purchase plan at risk General Manager Lin Kechuang was detained, and his planned share purchase may not be completed on time. A top executive's legal trouble and a stalled insider buying plan hurt confidence in management stability and future prospects.
It adds a second layer of management/legal risk that directly undermines investor trust and the stock's appeal.
First-half loss and revenue drop Sanan reported a first-half net loss of 97.9 million yuan, with revenue down 28% year on year. The second-quarter loss widened to 165 million yuan. Weak core results show the company is struggling, which pressures the stock price.
Fundamental earnings deterioration is a primary driver of the stock's weak performance and outlook.
Price hikes for key chips Sanan raised prices for some LED, radio frequency, power electronics, and optical technology chips in response to higher raw material costs. If sustained, these price increases could support revenue and margins, offering a partial counterweight to the negative news.
It is the main positive operational development that could improve profitability and offset some of the bearish pressures.

August 202623 Jul – 24 Sep 2026

▼3▲1

Sanan Optoelectronics hit by controller detention and first-half loss

Actual controller criminally detained Sanan's actual controller Lin Xiucheng was criminally detained on suspicion of embezzlement and misappropriation of funds. He holds no company post, and Sanan says operations are normal, but the news raises governance worries and helped push the stock down 2.81% on September 24.
This is the most recent and severe governance shock, directly weighing on investor confidence and the share price.
General manager detained, share purchase plan at risk General Manager Lin Kechuang was detained, and his planned share purchase may not be completed on time. A top executive's legal trouble and a stalled insider buying plan hurt confidence in management stability and future prospects.
It adds a second layer of management/legal risk that directly undermines investor trust and the stock's appeal.
First-half loss and revenue drop Sanan reported a first-half net loss of 97.9 million yuan, with revenue down 28% year on year. The second-quarter loss widened to 165 million yuan. Weak core results show the company is struggling, which pressures the stock price.
Fundamental earnings deterioration is a primary driver of the stock's weak performance and outlook.
Price hikes for key chips Sanan raised prices for some LED, radio frequency, power electronics, and optical technology chips in response to higher raw material costs. If sustained, these price increases could support revenue and margins, offering a partial counterweight to the negative news.
It is the main positive operational development that could improve profitability and offset some of the bearish pressures.

Latest23 Jul – 24 Sep 2026

▼3▲1

Sanan Optoelectronics hit by controller detention and first-half loss

Actual controller criminally detained Sanan's actual controller Lin Xiucheng was criminally detained on suspicion of embezzlement and misappropriation of funds. He holds no company post, and Sanan says operations are normal, but the news raises governance worries and helped push the stock down 2.81% on September 24.
This is the most recent and severe governance shock, directly weighing on investor confidence and the share price.
General manager detained, share purchase plan at risk General Manager Lin Kechuang was detained, and his planned share purchase may not be completed on time. A top executive's legal trouble and a stalled insider buying plan hurt confidence in management stability and future prospects.
It adds a second layer of management/legal risk that directly undermines investor trust and the stock's appeal.
First-half loss and revenue drop Sanan reported a first-half net loss of 97.9 million yuan, with revenue down 28% year on year. The second-quarter loss widened to 165 million yuan. Weak core results show the company is struggling, which pressures the stock price.
Fundamental earnings deterioration is a primary driver of the stock's weak performance and outlook.
Price hikes for key chips Sanan raised prices for some LED, radio frequency, power electronics, and optical technology chips in response to higher raw material costs. If sustained, these price increases could support revenue and margins, offering a partial counterweight to the negative news.
It is the main positive operational development that could improve profitability and offset some of the bearish pressures.

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.