Report Industry Investment Rating - Not mentioned in the report Core Viewpoints - The report is a meteorological analysis report on natural rubber futures. It points out that it is the end of the peak production season, and the weather conditions are generally good. However, there are still some potential impacts from climate phenomena such as La Nina and El Nino on the rubber production areas [1]. - The long - and medium - term climate dynamics show that the La Nina phenomenon has strengthened slightly month - on - month, and there is a possibility of transitioning to ENSO neutral and then to a weak El Nino phenomenon, which may increase weather disturbances in the production areas [1]. - Different natural rubber production areas around the world have different weather conditions, which will have different impacts on rubber production, including the progress of tapping, yield, and the risk of diseases and pests [1][2][3] Summary by Directory 1. This Week's Important Meteorological Warnings - **Long - and medium - term climate dynamics**: - **ENSO**: The current Nino3.4 index is - 0.8 (- 0.1), and the La Nina phenomenon has strengthened slightly month - on - month. A weak La Nina phenomenon may last from December 2025 to February 2026, transition to ENSO neutral around January - March 2026, and there is a probability of over 45% of turning into a weak El Nino phenomenon from June to August 2026, which may increase weather disturbances in the production areas [1]. - **IOD**: The DMI index is - 0.60, increasing the probability of rainfall around Indonesia [1]. - **MJO**: It is expected to be in the second phase and will develop towards the third phase, which will affect the area around Indonesia and intensify weather changes [1]. - **Production area weather**: - **China**: Yunnan has stopped tapping. The significant cooling in early January and mostly sunny weather are conducive to the complete defoliation of rubber trees. Hainan is gradually cooling, with sporadic light rain recently. Most areas in the central and eastern parts have stopped tapping, and the western and southern parts are still tapping but are expected to stop completely in mid - January [2]. - **Indochina Peninsula**: In Thailand, rainfall has significantly decreased month - on - month, and the rubber in the main planting areas may increase production in the next few weeks but will decrease and stop tapping in mid - January. Vietnam has less rain, which has little impact on tapping. Cambodia's weather is similar to Vietnam's. Myanmar has less rain, and the tapping may be postponed [3]. - **Malay Archipelago**: In Indonesia, the La Nina phenomenon and IOD have strengthened, increasing the probability of rainfall. In December, precipitation in the whole area was high, which affected production. In Malaysia, the Malay Peninsula is in the peak rainy season, and continuous rainfall still affects tapping. In the Philippines, rainfall was less in December but increased recently, and future rainfall will decrease, which is beneficial to production [5]. - **South Asia**: In India, weather disturbances have weakened month - on - month. In Sri Lanka, the flood has subsided, but there is still rain in the central and northern parts [6]. - **West Africa**: In Cote d'Ivoire, rainfall has increased significantly year - on - year in December, and attention should be paid to soil humidity changes and drought risks in the future [6]. 2. Production Area Rainfall Data Summary - The report provides the weekly precipitation data of main natural rubber production areas, including the cumulative precipitation of the current month, the year - on - year change percentage, the cumulative precipitation of last week, the weekly difference, the forecast precipitation for this week, and the forecast precipitation for the next week [7]. 3. Production Area Sudden Disaster Monitoring - **Tropical depression**: A tropical depression may form in the southwest of Indonesia, increasing rainfall in western Indonesia, but the impact is limited [10]. - **Flood disaster**: Thailand has less rain recently, and future rainfall is limited, which may increase production. The Malay Peninsula and Sumatra Island in Indonesia are in the peak rainy season, but the rainfall has decreased month - on - month, and the flood risk has decreased [11]. 4. Weather Conditions in Each Production Area - The report provides detailed weather maps and meteorological indicator tracking data for each production area, including daily precipitation distribution, monthly precipitation distribution, annual cumulative precipitation, soil humidity anomaly of each layer, temperature comparison, and average wind speed [20][40][63] Appendix - **Appendix 1: Planting Area and Yield Distribution of Main Natural Rubber Production Areas**: Global natural rubber is mainly planted in Southeast Asia, accounting for about 80%. Thailand's planting area accounts for about 1/4, and Indonesia accounts for about 1/5. In terms of yield, Thailand accounts for more than 30% of the global total, Indonesia accounts for 15%, and Cote d'Ivoire accounts for more than 10% [196]. - **Appendix 2: Phenological Period of Rubber and the Impact of Weather**: The phenological period of rubber trees includes five stages. New leaves are most sensitive to weather and natural disasters before maturity. Long - term rubber supply depends on planting area and tree - age structure, while short - term supply is more affected by weather factors. Different weather conditions have different impacts on rubber production during the tapping and non - tapping periods [205]. - **Appendix 3: Production Cycle and Potential Meteorological Risks of Main Natural Rubber Production Areas**: The global natural rubber supply has obvious seasonality. The high - yield period is from September to November, and the low - yield period is from February to March. The tapping and non - tapping times of each production area vary due to latitude differences [207].

Report Summary 1. Report's Industry Investment Rating No relevant information provided. 2. Core Viewpoints - The La Nina phenomenon is strengthening, and the Indian Ocean Dipole (IOD) is also intensifying, increasing the probability of rainfall in Indonesia and its surrounding areas [1]. - High - latitude rubber - producing areas are gradually entering the dry season, which will affect rubber production [1]. - Weather conditions such as rainfall and temperature in various rubber - producing areas around the world will impact the progress of rubber tapping and production. 3. Summary by Directory 3.1 This Week's Important Weather Warnings - **Climate Dynamics** - The Nino3.4 index is - 0.7 (- 0.2), and the Southern Oscillation Index (SOI) is + 2.7. The La Nina phenomenon is strengthening, and it may last until December 2025 to February 2026 and transition to ENSO neutral from January to March 2026 [1]. - The DMI index of the Indian Ocean Dipole (IOD) is - 0.63 (- 0.17), indicating a strengthening of the IOD and an increased probability of rainfall around Indonesia [1]. - The Madden - Julian Oscillation (MJO) is expected to be in Phase 1, with little effect on the growth of rain clouds in Indonesia, and it will develop towards the East Indian Ocean by the end of the month [1]. - **China's Producing Areas** - Yunnan: Affected by cooling, it is approaching full suspension of tapping. Output in the northern part will be limited by low - temperature, and the southern part will have a slight temperature increase but limited output [1]. - Hainan: The temperature is currently suitable. There has been sporadic rainfall recently, and the dry content of glue has decreased. Tapping is expected to gradually stop in late December. There will be less rain and a temperature increase in the next week, followed by another temperature drop [1]. - **Indochina Peninsula Producing Areas** - Thailand: The north and northeast have less rain, and the south has significantly less rain in December compared to November, with little impact on raw material output. The north and northeast will cool down at the end of the month, and some areas may gradually stop tapping [2]. - Vietnam: Precipitation in November was higher than average. The south will have less rain, and the central - east will be slightly affected by showers [2]. - Cambodia: Precipitation in November increased year - on - year. There will be less rain in the future, but the temperature drop at the end of the month may reduce output [2]. - Myanmar: There will be less rain in the future, and the surface soil moisture in the south is low. There will be a significant temperature drop at the end of the month [2]. - Laos: It is currently in the peak - production period. Less rain and a temperature drop will slightly affect output [2]. - **Malay Archipelago Producing Areas** - Indonesia: The La Nina phenomenon and the Indian Ocean Dipole are strengthening, increasing the probability of rainfall. The first half - week will have mostly cloudy to light rain, with heavy rain possible in some areas, and the rain will weaken in the second half - week. The impact of rainfall on tapping in December is moderate, weaker than in November [4]. - Malaysia: The Malay Peninsula is in the peak of the rainy season. Rainfall from November to early December affected tapping, and the rain has weakened in the past two weeks but still has an impact [4]. - Philippines: Rainfall in November was slightly higher than the historical average. Rainfall in December decreased, and the temperature is suitable for tapping [4]. - **South Asian Producing Areas** - India: There was intermittent rain in southern Kerala last week due to a tropical depression. Areas in the southwest and northeast had little rain. Low temperatures in Maharashtra and the northeast may lead to a gradual stop of tapping [5]. - Sri Lanka: Floods have receded, and production is recovering [5]. - **West African Producing Areas** - Cote d'Ivoire: It is gradually emerging from the secondary rainy season. Cumulative precipitation in November increased year - on - year and is approaching normal levels. There were local showers in the past week, slightly affecting tapping [5]. 3.2 Summary of Rainfall Data in Producing Areas - The report provides monthly cumulative precipitation, year - on - year changes, weekly cumulative precipitation, weekly differences, and forecast precipitation for the current and next weeks in major natural rubber producing areas. For example, in Yunnan's Xishuangbanna, the monthly cumulative precipitation is 0.1 mm, a year - on - year decrease of 98% [6]. 3.3 Monitoring of Sudden Disasters in Producing Areas - There is a tropical depression disturbance in western Indonesia, which may increase rainfall in Sumatra and the Malay Peninsula [8]. - The weather in southern Thailand has improved, and the impact of floods has subsided. Short - term heavy rainfall in the Malay Peninsula and Sumatra in Indonesia requires attention to secondary disaster risks [9]. 3.4 Weather Conditions in Each Producing Area - The report presents precipitation and soil humidity forecasts, as well as various meteorological indicators such as daily precipitation distribution, monthly precipitation distribution, annual cumulative precipitation, soil humidity anomalies, temperature comparisons, and average wind speed for each major rubber - producing area [11][17][38]. 3.5 Appendix - **Appendix 1: Planting Area and Yield Distribution of Major Natural Rubber Producing Areas** - About 80% of the world's natural rubber is concentrated in Southeast Asia, mainly in Thailand, Indonesia, Malaysia, India, and Vietnam. Thailand accounts for about 1/4 of the planting area and over 30% of the global output, while Indonesia accounts for about 1/5 of the planting area and 15% of the output. Cote d'Ivoire accounts for over 10% of the output [198]. - **Appendix 2: Phenological Period of Rubber Trees and the Impact of Weather** - The phenological period of rubber trees includes "leaf - falling period - budding period - bronze period - light - green period - stable period (aging period)". New leaves are sensitive to weather and disasters before maturity, which can affect the tree's latex - producing ability. Short - term supply is affected by weather, and long - term supply depends on planting area and tree - age structure [207]. - **Appendix 3: Production Cycle and Potential Meteorological Risks of Major Natural Rubber Producing Areas** - Global natural rubber supply is seasonal, with a high - production period from September to November and a low - production period from February to March. The tapping and non - tapping times vary by latitude, with higher - latitude areas having earlier tapping starts and shorter tapping periods [209].

Report Summary 1. Report Industry Investment Rating No investment rating was provided in the report. 2. Core Viewpoint The report focuses on the impact of weather on natural rubber production in major global producing areas, with a particular emphasis on rainfall. It provides detailed weather forecasts and rainfall data for various regions, highlighting how weather conditions such as temperature, rainfall, and extreme weather events can affect rubber tree growth, tapping progress, and overall production [2][203]. 3. Summary by Directory 3.1 This Week's Important Weather Warnings - **China**: Yunnan is in the pre - stop - tapping transition, with low temperatures and a coming cold snap that may affect production. Hainan is in the pre - stop - tapping up - volume stage, with suitable temperatures and reduced rainfall conducive to tapping [2]. - **Thailand**: Northern and northeastern regions have light rain and smooth tapping. The southern region's flood has eased, but new rainfall is expected [2]. - **Vietnam**: Rainfall decreased significantly in the coming week after being affected by rain in November [2]. - **Other Regions**: Different regions such as Cambodia, Myanmar, Laos, Malaysia, Indonesia, the Philippines, South Asia, and West Africa have their own unique weather conditions and impacts on rubber production [5][6]. 3.2 Producing Area Rainfall Data Summary - The report provides a table of weekly precipitation in major natural rubber producing areas, including current month cumulative precipitation, year - on - year change, last week's cumulative precipitation, weekly difference, and precipitation forecasts for this week and the next week [8][10]. 3.3 Producing Area Sudden Disaster Monitoring - Tropical low - pressure activity is low in the Northern Hemisphere winter, but there are low - pressure disturbances in western Indonesia and the Indian Ocean, which may bring rainfall [11]. - Floods in southern Thailand and the Malay Peninsula have subsided, but some areas still have high water levels [12]. 3.4 Weather Conditions in Each Producing Area - **China**: Detailed precipitation and soil humidity forecasts for Yunnan and Hainan, as well as tracking of various meteorological indicators such as daily precipitation distribution, monthly precipitation distribution, and soil humidity anomalies [21][44]. - **Indochina Peninsula**: Similar to China, it includes precipitation and soil humidity forecasts, as well as tracking of meteorological indicators for Thailand, Vietnam, Cambodia, Myanmar, and Laos [64][94]. - **Malay Archipelago**: Precipitation and soil humidity forecasts, along with tracking of meteorological indicators for Indonesia, Malaysia, and the Philippines [120][143]. - **South Asia**: Precipitation and soil humidity forecasts, and tracking of meteorological indicators for India and Sri Lanka [148][170]. - **West Africa**: Precipitation and soil humidity forecasts, and tracking of meteorological indicators for the Ivory Coast [173][180]. 3.5 Appendix 1: Planting Area and Yield Distribution of Major Natural Rubber Producing Areas - Global natural rubber is mainly planted in Southeast Asia (about 80%), with Thailand having about 1/4 of the planting area and over 30% of the global output, and Indonesia having about 1/5 of the planting area and 15% of the output. The Ivory Coast accounts for over 10% of the output [194]. 3.6 Appendix 2: Phenological Period of Rubber and the Impact of Weather - The phenological period of rubber trees includes five stages, and the new leaf growth period is sensitive to weather and pests. Weather affects rubber production in different periods, and different diseases and pests may occur in each stage [203][204]. 3.7 Appendix 3: Production Cycle and Potential Meteorological Risks of Major Natural Rubber Producing Areas - Global natural rubber supply has obvious seasonality, with a high - yield period from September to November and a low - yield period from February to March. The opening and closing times of tapping vary by region due to climate differences [205].