New Pesticide Registration in China: Process, Data Requirements and Project Strategy

What Is a New Pesticide?

A new pesticide refers to any product containing an active ingredient that has not yet been approved for registration in China, including new pesticide technical materials (or technical concentrates) and new pesticide formulations.

Under the Measures for the Administration of Pesticide Registration, applicants are required to submit applications for the technical material and the formulation simultaneously, along with certified pesticide reference standards.

Who Should Focus on New Pesticide Registration in China?

• Companies independently developing new pesticide active ingredients;

• Businesses planning to introduce or license in new pesticide products from domestic or global markets;

• International companies with existing data and registered products in the EU, the US, Japan, or other regions, looking to enter the Chinese market;

• R&D companies that have identified candidate compounds and need to evaluate the investment, timelines, and technical risks of registration in China.

Therefore, before starting a registration project in China, companies must first confirm:

1. Registration Status: Whether the active ingredient is truly unregistered in China, confirming its classification under the new pesticide category;

2. Submission Strategy: The optimal regulatory strategy for bundling the technical material (or technical concentrate) and the formulation in a joint application;

3. Data Gap Analysis: The specific gaps between the company's existing data dossier and China's current registration requirements.

Navigating China's New Pesticide Registration: Key Regulatory Changes in 2026

In 2025, the Ministry of Agriculture and Rural Affairs of the People's Republic of China (MARA) revised key regulations, including the Measures for the Administration of Pesticide Registration and the Measures for the Administration of Pesticide Registration Trials. These crucial amendments officially took effect on January 1, 2026. (Note: REACH24H has published a comprehensive comparison between the revised and previous pesticide registration measures for your reference.)

Following this, on July 31, 2026, the Department of Crop Production of the Ministry of Agriculture and Rural Affairs issued a notice soliciting comments on revisions to the Pesticide Registration Data Requirements. These proposed revisions introduce substantial adjustments, further refining the data requirements for new pesticides.

For a detailed analysis of the proposed ecotoxicology data changes for new chemical pesticides, please refer to our dedicated article:  From Completeness to Scientific Rigor: Ecotoxicology in China’s New Pesticide Registration.

Enhanced Clarity on the Six-Year Data Protection Rule

The revised Measures for the Administration of Pesticide Registration explicitly state:

For a pesticide containing a newly registered compound, a six-year data protection period applies from the date of its first registration. During this period, any subsequent applicant seeking to register a pesticide with the same new active ingredient must obtain formal data authorization from the original registration certificate holder, unless the applicant submits independently generated data.

The notice soliciting comments on revisions to the Pesticide Registration Data Requirements states that:

The recent draft revisions to the Pesticide Registration Data Requirements emphasize stronger data protection mechanisms. They introduce new registration categories, outline clearer pathways for data transfer and authorization, and establish more precise requirements for major toxicological and environmental metabolites.

Therefore, for companies planning to register new compounds in China—whether developed independently, in-licensed, or jointly developed—success relies on more than just robust registration data. Applicants must proactively strategize around:

• Timing: Optimizing the timeline for the first registration;

• Data Ownership: Defining clear ownership rights for registration data;

• Acquisition & Compensation: Establishing frameworks for how data will be acquired or authorized.

• Partnership Agreements: Structuring terms of data use and compensation among co-developers.

• Partnership Agreements: Structuring terms of data use and compensation among co-developers.

China New Pesticide Registration Process

Data Requirements for New Pesticide Registration in China

The specific data requirements for a new pesticide registration vary based on the intrinsic properties of the active ingredient, the pesticide category, formulation type, and the proposed crop or application scenario.

Within the general regulatory framework, a complete registration dossier typically encompasses the following core technical data categories:

Can Overseas OECD/GLP Data Be Used for Pesticide Registration in China?

Under the current Measures for the Administration of Pesticide Registration, the direct answer is no. All registration study reports must be issued by testing facilities officially recognized by China's Ministry of Agriculture and Rural Affairs. Consequently, formal registration studies should be conducted within China.

For products already registered in regions like the EU, the US, or Japan, existing overseas OECD/GLP data cannot directly fulfill China's registration requirements. However, this data remains highly valuable as a critical reference and foundational baseline for designing China-specific study protocols.

The Strategic Approach: Data Gap Analysis (DGA)

Rather than starting from scratch, the most effective strategy is to conduct a comprehensive global data inventory followed by a targeted Data Gap Analysis (DGA). This involves a systematic, item-by-item evaluation of:

• Study Guidelines: The specific testing protocols applied;

• Study Design: Key parameters and methodologies used;

• Data Integrity: The completeness and overall quality of the studies;

• Regulatory Discrepancies: Specific gaps when compared against current China registration data requirements.

Key Factors Affecting the Timeline and Cost of New Pesticide Registration

How Long Does China New Pesticide Registration Generally Take?

Based on practical project experience, a complete new pesticide registration project can generally be planned on the basis of approximately 4–5 years. A comprehensive new pesticide registration typically requires a planning horizon of 4 to 5 years. While timelines vary by pesticide category, the actual duration is heavily influenced by:

• The volume of required registration trials.

• Seasonal constraints and crop cycles for field testing.

• Product classification and proposed application scenarios.

• The necessity for in-depth evaluations of major metabolites or impurities.

• Unexpected anomalies or delays during laboratory testing.

• The initial completeness of your registration dossier.

• Requests for supplementary data or further studies during the official technical review.

Strategic takeaway: If your company has a clear commercialization target in China, you must adopt a reverse-planning strategy. Registration initiatives should commence well in advance, rather than waiting until the product nears its final market launch.

What Drives the Cost of New Pesticide Registration?

There is no "one-size-fits-all" budget for new pesticide registrations in China.

Overall project costs are primarily driven by:

• Pesticide category and intrinsic properties.

• The combined submission strategy for the technical material (TC/TK) and formulation.

• Proposed registered uses and the scope of target crops.

• The completeness and applicability of existing data.

• The scope of newly mandated domestic registration studies.

• The complexity and quantity of specific metabolites and impurities.

• Outcomes of preliminary risk assessments.

• The selection of testing facilities and specific laboratory protocols.

• Potential supplementary studies requested during the regulatory review.

Recommendation: For projects still in the early R&D or in-licensing stages, we highly recommend executing a Preliminary Risk Assessment and a Data Gap Analysis (DGA) to establish a reliable baseline before finalizing your timeline and budget.

Mitigating Project Risks in New Pesticide Registration

New pesticide development involves long R&D cycles and substantial capital investment. Therefore, the ultimate challenge goes beyond merely completing mandatory tests; it lies in identifying critical regulatory risks as early as possible to safeguard the final registration.

Stage 1: Project Initiation and Preliminary Risk Assessment

Before investing in large-scale formal registration studies (e.g., during candidate screening or in-licensing phases), it is crucial to evaluate the regulatory feasibility and major safety risks of the compound.

Depending on the project stage, this assessment integrates:

• Global literature and international registration dossier research;

• Data from analogues and read-across approaches;

• In silico (Q)SAR computational modeling;

• Targeted in vitro screening or exploratory in vivo studies;

• Preliminary human health and environmental risk assessment.

The Goal: This preliminary assessment is not about adding extra tests. It answers the fundamental question: Is this compound worth the continued investment? By identifying potential safety hurdles before major costs are incurred, companies can pinpoint exactly which issues require defensive strategies in subsequent studies.

Stage 2: End-to-End Registration Study Management

New pesticide registration studies involve multiple modules, including product chemistry, toxicology, efficacy, residues, ecotoxicology, and environmental fate.

Effective project management generally includes:

• Official study sample preparation and sealing.

• Strategic laboratory selection and study filing.

• Rigorous review of study protocols and test plans.

• Technical follow-ups at critical milestones.

• Proactive analysis and mitigation of abnormal test results.

• Comprehensive study report reviews.

• Cross-module data consistency verification.

Reviewing study protocols before testing begins, monitoring critical technical issues throughout the process, and comprehensively auditing data and reports upon completion can help preemptively avoid problems that might jeopardize the final registration.

Stage 3: Scientific Dossier Review and Technical Defense

Completion of all registration studies does not mean the project is risk-free.

Before the formal submission, the complete dossier must undergo a rigorous scientific review to determine:

• Are the data sets comprehensively complete?

• Is the scientific logic consistent across all technical modules?

• Do the technical material (TC/TK) and formulation data cross-support each other?

• Do any key toxicological or environmental findings pose a regulatory review risk?

• Do the impurity profiles, metabolite behavior, and risk assessments form a robust weight-of-evidence chain?

• Are preemptive scientific explanations and defense strategies required for potential official inquiries?

Our Solution: For projects with completed studies, REACH24H offers a Comprehensive Scientific Dossier Review prior to formal submission. We audit the data integrity, scientific validity, and logical cohesion across all modules from the perspective of the evaluating authority.

Strategic Planning for New Pesticide Registration in China

For Domestic Innovators: Independently Developed Active Ingredients

For independently developed new pesticides, safety assessment should be shifted upstream as early as possible, ideally during the candidate compound screening and project initiation stages.

Beyond evaluating efficacy, companies must proactively assess:

• Potential toxicological risks;

• Environmental and ecotoxicological impacts;

• Behaviors of metabolites;

• Impurity profiles;

• Human and environmental exposure scenarios;

• Data requirements of target global markets.

Strategic Value: Identifying critical safety red flags early allows for timely adjustments to candidate compounds, proposed uses, or development pipelines. This significantly mitigates the risk of encountering fatal flaws only after expensive, large-scale formal registration trials have commenced.

For Domestic Companies: In-Licensing or Introducing Off-Patent Products

For active ingredients already evaluated in overseas markets, publicly available international dossiers can be cross-referenced with China market needs for a preliminary feasibility screening.

Key project considerations should include:

• Global registration status and regulatory history;

• Current registration landscape in China;

• Patent landscapes and data generation strategies;

• China-specific Data Gap Analysis (DGA);

• Market capacity and commercial viability;

• Overall registration investment versus the expected product lifecycle.

International Companies: Synchronizing China with Global Development Strategies

For multinational companies holding existing data from the EU, the US, Japan, or other regions, executing a comprehensive global data inventory early in the project is paramount. It is crucial to determine:

• Which existing studies are applicable to support China registration;

• Which data modules require further scientific justification for local applicability;

• Whether field studies are restricted by specific seasonal testing windows;

• Whether specific major metabolites or impurities will emerge as critical-path factors delaying the registration timeline;

• How to seamlessly synchronize the China registration pathway with other global markets.

Strategic Value: If China is a strategic target market, its specific regulatory requirements must be incorporated into the global development pipeline from day one, rather than initiating a separate China project only after core market registrations are completed.

Navigating the Core Technical Challenges in China New Pesticide Registration

1. The Complexity of Major Metabolite Assessment

The evaluation of major metabolites remains one of the most formidable technical hurdles in new chemical pesticide registrations. During residue, environmental fate, and toxicological assessments, if a major metabolite is flagged for further evaluation, the project scope may drastically expand to include:

• Metabolite identification and structural characterization;

• Synthesis of reference standards or test samples;

• Toxicological profiling;

• Environmental behavior and fate assessment;

• Scientific justification of residue definitions;

• Dietary and environmental risk assessment.

The Strategic Impact: Because certain metabolites possess highly complex structures and present significant synthesis difficulties, they can severely impact both project timelines and budgets. Rather than uncovering these bottlenecks late in formal testing, proactively analyzing potential metabolic pathways and identifying key metabolites early is crucial for designing a resilient overall registration strategy.

2. Bridging Overseas Data with China Registration Requirements

Multinational companies often hold OECD/GLP data from other markets (e.g., the EU or the USA). While this provides a strong scientific foundation, bridging this data requires rigorous, item-by-item evaluation against China's specific data requirements. Success depends on accurately judging the regulatory applicability of overseas data, anticipating local China study mandates, and formulating a targeted supplementary data strategy.

This data-bridging process is also one of the most critical preparatory steps for imported products pursuing registration in China.

3. Addressing Complex Safety Endpoints and Expert Review Comments

Projects frequently encounter intense regulatory scrutiny regarding complex safety endpoints such as carcinogenicity, mutagenicity, endocrine disruption, complex metabolite identification, residue definition, or environmental risks.

These high-stakes technical challenges rarely have a "quick fix" and cannot necessarily be resolved by simply commissioning one additional study. A more robust defense strategy involves first isolating the exact scientific concern, followed by a holistic synthesis of all available evidence:

• In vivo studies;

• In vitro studies;

• In silico (Q)SAR or other prediction modeling results;

• Literature reviews;

• Mechanism of Action (MoA) analyses;

• Adverse Outcome Pathways (AOP);

• Weight of Evidence (WoE) frameworks,

Our Approach: By meticulously synthesizing these elements, we determine whether the existing evidence chain is robust enough to support a scientific justification, or if highly targeted supplementary studies are genuinely warranted.

How REACH24H Supports Your China New Pesticide Registration

REACH24H provides end-to-end regulatory solutions spanning the entire lifecycle of new pesticide development, from early candidate screening and study monitoring to final dossier integration, regulatory defense, and global registration strategy.

Companies can select targeted services for specific milestones or partner with us for comprehensive, full-lifecycle project management.

1. Early-Stage Screening & Safety Assessment

For innovative or in-licensed active ingredients, we conduct feasibility and safety assessments before you invest in large-scale formal registration studies.

Depending on the actual project phase, the assessment includes:

• Global literature and historical dossier research;

• In silico (Q)SAR prediction;

• In vitro screening and exploratory in vivo studies;

• Preliminary human health risk assessment;

• Preliminary environmental risk assessment;

• Strategic roadmaps for formal registration studies.

The Goal: To identify critical safety red flags as early as possible, safeguarding your R&D investment.

Learn More About China New Pesticide Pre-Registration Safety Assessment

2. Study Monitoring & Lifecycle Risk Management

We provide end-to-end supervision of your formal studies. Our support covers laboratory selection, rigorous protocol review, milestone tracking, troubleshooting abnormal results, and final report auditing. We place a heavy emphasis on study design optimization, execution quality, and seamless cross-module data consistency.

3. Safety Assessment and Scientific Justification

For highly complex technical hurdles involving toxicology, environmental fate, metabolites, or endocrine disruption, we build robust scientific defenses using your existing data. We evaluate the scientific feasibility of data waivers or study exemptions and prepare authoritative justification dossiers. When standard studies fall short, we integrate MoA, AOP, and WoE frameworks for comprehensive weight-of-evidence arguments.

4. Scientific Dossier Audit & Regulatory Defense

Pre-submission, we conduct a stringent audit to ensure the scientific validity, completeness, and consistency of your entire dossier. For projects that have received official technical review inquiries, we analyze the regulatory concerns, maximize the use of existing evidence for defense, and design highly targeted supplementary study plans if required.

5. End-to-End China New Pesticide Registration Services

Backed by our technical specialists and project managers, we drive continuous progress through every regulatory milestone:

• Preliminary data gap analysis;

• Registration strategy planning;

• Chinese common name applications;

• Study project management;

• Risk assessment;

• Dossier preparation;

• Official registration application submission;

• Post-submission technical defense and comment responses.

6. Global Registration Strategy for Innovative Pesticides

For innovative active ingredients targeting simultaneous entry into China, the US, the EU, Latin America, Asia-Pacific region, and other markets, we synchronize regulatory requirements across multiple jurisdictions. Our global strategy supports:

• Multi-country market access roadmaps;

• Global Data Gap Analysis & Data Synchronization;

• Optimized supplementary study planning;

• Global registration dossier preparation;

• Localized application submission and authorized representation support.

The Goal: Maximizing the efficiency and ROI of your R&D data by aligning global compliance strategies from day one.

The REACH24H Advantage: Why Partner with Us?

Success in new pesticide registration demands more than just completing mandatory studies. It requires identifying risks early in the R&D phase, strategizing study designs, and constructing a robust, scientifically defensible weight-of-evidence chain for regulatory review. REACH24H delivers continuous, end-to-end technical support driven by practical registration project experience, multidisciplinary technical teams, and proven safety assessment methodologies.

Practical Experience in China New Pesticide Registration

REACH24H is deeply integrated into China’s pesticide regulatory landscape. To date, we have successfully secured 7 new pesticide registration certificates across various categories, including chemical and biochemical pesticides. Our hands-on experience spans from early-stage safety assessment, feasibility evaluation, and registration project management to final dossier submission and rigorous technical defense.

Multidisciplinary Technical Team

Our dedicated team encompasses experts in toxicology, ecotoxicology, analytical chemistry, pesticide, organic chemistry, and regulatory strategy. Backed by internationally recognized credentials—including Diplomate of the American Board of Toxicology (DABT) and European Registered Toxicologist (ERT)—our specialists are uniquely equipped to justify and resolve highly complex safety endpoints.

Scientific Assessment Methodologies & Toxicology Standard Setting

We leverage cutting-edge computational toxicology and risk assessment tools (e.g., Derek Nexus, QSAR Toolbox, Sarah, MultiCASE) alongside advanced methodologies like (Q)SAR, NAMs, MoA, AOP, and WoE for early-stage screening.

In 2025, two pivotal industry standards officially took effect with REACH24H serving as a principal drafting organization: the Guidelines for the Threshold of Toxicological Concern Method (T/CST 001-2025) and the Guidelines for Integrated Testing and Assessment Approaches (T/CST 002-2025). This milestone initiative extensively involved advanced evaluation methodologies, including the Threshold of Toxicological Concern (TTC), Integrated Approaches to Testing and Assessment (IATA), New Approach Methodologies (NAMs), and Weight of Evidence (WoE). Our core contribution to these standards further underscores the REACH24H team’s profound technical expertise and historical accumulation in computational toxicology and pesticide risk assessment.

Local Expertise with a Global Strategic Vision

Our core regulatory team operates on the ground in China while maintaining a deep understanding of OECD, US EPA, and EFSA scientific assessment frameworks. For innovators planning simultaneous multi-market launches, we seamlessly synchronize global data requirements, mitigating data gaps and optimizing your global registration pathway from day one.

China New Pesticide Registration: FAQ