Stock Market Navigation_March 17, 2026_Shanghai and Shenzhen Stock Market Announcements and Trading Reminders

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[Trading Halt]

300142 Wosen Biotech

300385 Xuelang Environment

688175 Gaoling Information

[Resumption of Trading]

002859 Jemei Technology

[Major Events]

Demingli: Progressing in an orderly manner on the issuance of shares to specific targets and the 2026 stock option incentive plan

Demingli issued a trading abnormality announcement. After verification, the information previously disclosed by the company requires no correction or supplementation. Recently, major information that could affect the company’s stock price has not been reported by public media. The company’s operations are normal, and there have been no significant changes in the internal or external business environment. The company, controlling shareholders, and actual controllers have no major undisclosed matters or planning stages of major matters. The company is steadily advancing the issuance of shares to specific targets and the 2026 stock option incentive plan.

Gaoling Information: Planning to acquire Kairui Xing Tong’s control, trading will be suspended tomorrow

Gaoling Information announced that it is planning to acquire the control of Kairui Xing Tong Information Technology (Nanjing) Co., Ltd. through issuing shares and cash payments, and also plans to raise supporting funds. This transaction is expected to constitute a major asset reorganization and will not result in a change of the company’s actual controller. The company’s stock will be suspended from March 17, 2026, with an expected suspension period of no more than 10 trading days. Kairui Xing Tong’s business scope includes satellite mobile communication terminal manufacturing and sales.

Sanfangxiang: 3 consecutive limit-ups—affected by geopolitical situation and international energy prices, major chemical products and company product prices fluctuate significantly

Sanfangxiang announced that its stock price has increased by more than 20% cumulatively over three consecutive trading days, indicating abnormal trading fluctuations. Recently, due to geopolitical tensions and international energy prices, the prices of major chemical products and the company’s products have fluctuated greatly. However, the company’s main business has not undergone significant changes, and there is no obvious impact on profitability or gross profit margin.

Shanghai Airport: Planning to invest 1.469 billion yuan to build Pudong International Airport Operations Support Base

Shanghai Airport announced that it has decided to invest 1.469 billion yuan from its own funds to build the Pudong International Airport Operations Support Base, and authorized management to apply for up to 1.1 billion yuan in project loans from banks. The project is located in the southern work area of Phase IV of Pudong International Airport, covering about 87,000 square meters, with a total construction area of approximately 117,100 square meters. Construction is planned to start in October 2026 and be completed by 2028.

Suda Co., Ltd.: Actual controller and Chairman Li Xiyuan detained

Suda announced that it received notice from Li Xiyuan’s family that on March 13, 2026, he received a “Notice of Filing” and a “Detention Notice” issued by the Bengbu City Bengshan District Supervisory Committee. Li Xiyuan, the company’s actual controller and chairman, has been detained. As of this announcement, other directors and senior management are performing their duties normally, and the company’s control has not changed. Operations are normal, and this matter is not expected to significantly impact daily business activities. The company has not received any investigation or cooperation documents from authorities, and the progress and conclusions of the detention investigation are unknown.

Southern Power Grid Energy Storage: Planning to invest 7.379 billion yuan to build Guangdong Xin Feng Pumped Storage Power Station

Southern Power Grid Energy Storage announced plans to invest 7.379 billion yuan to build the Guangdong Xin Feng Pumped Storage Power Station, a national energy bureau planning project located in Xin Feng County, Shaoguan City, Guangdong Province, with a planned installed capacity of 1.2 million kW. The project’s capital comprises 20% equity and 80% bank loans. The board has approved this investment plan, pending shareholder approval. The project is expected to be fully operational during the “14th Five-Year Plan” period.

Wosen Biotech: Planning to change company control, trading will be suspended from tomorrow

Wosen Biotech announced that it is planning to issue A-shares to specific targets, which may lead to a change in control. To protect investors’ interests and prevent abnormal stock price fluctuations, the company’s stock will be suspended from March 17, 2026, for no more than 2 trading days.

BesMe (Rights Issue): Actual controller Chen Feng fined 4.5 million yuan for failing to fulfill mandatory tender offer obligations and concealing shareholding changes

BesMe announced that its actual controller, Chen Feng, received a “Preliminary Administrative Penalty Notice” from the Zhejiang Regulatory Bureau of the China Securities Regulatory Commission. Chen Feng failed to fulfill mandatory tender offer obligations and concealed shareholding changes, and is ordered to correct these issues, given a warning, and fined 4.5 million yuan.

[Performance Highlights]

Wanhua Chemical: Net profit of 12.527 billion yuan in 2025, down 3.88% year-on-year

Wanhua Chemical released its performance brief, reporting total revenue of 203.235 billion yuan in 2025, an increase of 11.62% year-on-year; net profit attributable to shareholders was 12.527 billion yuan, down 3.88%.

Qingdao Port: Net profit of 5.272 billion yuan in 2025, up 0.7% year-on-year

Qingdao Port announced that in 2025, it achieved operating revenue of 18.806 billion yuan, a decrease of 0.7%; net profit was 5.272 billion yuan, an increase of 0.7%.

Nangang Co.: Net profit of 2.867 billion yuan in 2025, up 26.83% year-on-year

Nangang Co. announced that in 2025, operating income was 57.994 billion yuan, down 6.17%; net profit attributable to shareholders was 2.867 billion yuan, up 26.83%. The company plans to distribute a cash dividend of 0.1372 yuan per share (tax included) based on the total share capital registered at the equity distribution date, with remaining undistributed profits carried over to the next year.

[Shareholding Changes]

Dingxin Communications (Rights Issue): Shareholder Wang Tianyu reduced 6.1434 million shares from January 20 to March 16

Dingxin Communications announced that shareholder Wang Tianyu reduced 6.1434 million shares through centralized bidding and block trades, decreasing his stake from 5.94% to 5.00%.

Laimu Co.: Controlling shareholder Fang Peijiao plans to reduce holdings by up to 3.00%

Laimu Co. announced that controlling shareholder and actual controller Fang Peijiao plans to reduce no more than 4.2681 million shares (1.00%) via centralized bidding from April 8 to July 7, 2026, and no more than 8.5362 million shares (2.00%) via block trades, totaling up to 12.8043 million shares (3.00%). The source of shares includes pre-IPO holdings and capital reserve conversions, with reasons for reduction being personal funding needs.

Keyuan Pharmaceutical: Shareholder Jinan Dingyou plans to reduce holdings by up to 3%

Keyuan Pharmaceutical announced that shareholder Jinan Dingyou plans to reduce no more than 3.2487 million shares (3%) via centralized bidding and block trades, with up to 1.0829 million shares (1%) via centralized bidding and up to 2.1658 million shares (2%) via block trades. The reduction will occur within three months after the announcement.

Huiyu Pharmaceutical: Shareholder Wang Xiaopeng plans to reduce holdings by up to 3%

Huiyu Pharmaceutical announced that shareholder Wang Xiaopeng intends to reduce no more than 12.708 million shares (3%) through centralized bidding and block trades from April 8 to July 6, 2026. The shares are from pre-IPO holdings.

[Major Contracts]

Jianghe Group: Awarded approximately 274 million yuan project

Jianghe Group announced that its wholly owned subsidiary, Beijing Jianghe Curtain Wall System Engineering Co., Ltd., received a notice of award from Beijing Construction Engineering Group Co., Ltd., for the Haidian District Qinghe Station North - Anningzhuang Comprehensive Development Plot Curtain Wall Project (Sections 1-3), with a contract value of about 274 million yuan, accounting for approximately 1.22% of the company’s 2024 revenue.

Anhui Construction: Subsidiaries awarded 1.442 billion yuan construction projects

Anhui Construction announced that its subsidiaries recently received project award notices. Anhui Construction Highway Bridge Construction Group Co., Ltd. won the S24 Hangzhou to Hefei Expressway Hefei section roadbed and pavement project - Section 3, with a bid of 709 million yuan. Anhui Construction Road Port Construction Group Co., Ltd. won the S24 Hangzhou to Hefei Expressway Hefei section roadbed and pavement project - Section 4, with a bid of 733 million yuan.

Sinochem Geotechnical: Wholly owned subsidiary awarded Shanghai International Airport runway infrastructure maintenance project

Sinochem Geotechnical announced that its wholly owned subsidiary, Beijing Runway, signed a framework contract for runway infrastructure maintenance (including auxiliary facilities) with Shanghai International Airport Co., Ltd., with a contract value of 62.3955 million yuan, accounting for 4.08% of the company’s 2024 audited revenue. The project is expected to positively impact future performance.

Jingce Electronics: Subsidiary Shanghai Jingce signed a 288 million yuan general contracting construction contract

Jingce Electronics announced that its controlling subsidiary, Shanghai Jingce, signed a general contracting construction contract for R&D industrial projects with Shanghai Baoye Group Co., Ltd., with a contract amount of 288 million yuan.