Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. They are easily worked, molded, and thermoformed.
We aims to provide a complete knowledgeable report so that the readers will benefit from it. The report is properly examined and compiled by industry experts and will shed light on the key information that requires from the clients.
Case numbers are resurging in parts of the world where the COVID-19 pandemic was waning, falling in places that saw huge surges recently, and just beginning to rise in previously little-impacted parts of the globe.
Studying and analyzing the impact of Coronavirus COVID-19 on the Polycarbonate (PC) industry, the report provide in-depth analysis and professtional advices on how to face the post COIVD-19 period.
Market Segment by Product Type
Antistatic PC
Conductive PC
Fire Protection PC
Food Grade PC
Market Segment by Product Application
Transportation
Electrical & Electronics
Construction
Packaging
Consumer Goods
Medical Devices
Others
Finally, the report provides detailed profile and data information analysis of leading company.
SABIC
Bayer
Lotte Chemicals
Mitsubishi
Chi Mei Corp
RTP Co
LG Chem
Idemitsu Kosan
Teijin
Trinseo S.A
GE
Insights and Tools:
Projected and forecast revenue values are in constant U.S. dollars, unadjusted for inflation.
Product values and regional markets are estimated by market analyst, data analyst and people from related industry, based on companys' revenue and applications market respectively.
The data sources include but not limited to reports of companys,international organizations and governments, MMI market surveys,and related industry news.
Analyses of global market trends, with historical data, estimates for 2022 and projections of compound annual growth rates (CAGRs) through 2027
The market research includes historical and forecast data from like demand, application details, price trends, and company shares by geography, especially focuses on the key regions like United States, European Union, China, and other regions.
In addition, the report provides insight into main drivers,challenges,opportunities and risk of the market and strategies of suppliers. Key players are profiled as well with their market shares in the global market discussed.
Research Objectives
1.To study and analyze the global Polycarbonate (PC) consumption (value) by key regions/countries, product type and application, history data from 2017 to 2021, and forecast to 2027.
2.To understand the structure of Polycarbonate (PC) market by identifying its various subsegments.
3.Focuses on the key global Polycarbonate (PC) manufacturers, to define, describe and analyze the value, market share, market competition landscape, Porter's five forces analysis, SWOT analysis and development plans in next few years.
4.To analyze the Polycarbonate (PC) with respect to individual growth trends, future prospects, and their contribution to the total market.
5.To share detailed information about the key factors influencing the growth of the market (growth potential, opportunities, drivers, industry-specific challenges and risks).
6.To project the consumption of Polycarbonate (PC) submarkets, with respect to key regions (along with their respective key countries).
7.To analyze competitive developments such as expansions, agreements, new product launches, and acquisitions in the market.
8.To strategically profile the key players and comprehensively analyze their growth strategies.
Table of Contents
Global Polycarbonate (PC) Market Research Report 2022, Forecast to 2027
1 Market Study Overview
1.1 Study Objectives
1.2 Polycarbonate (PC) Introduce
1.3 Combined with the Analysis of Macroeconomic Indicators
1.4 Brief Description of Research methods
1.5 Market Breakdown and Data Triangulation
2 Global Trend Summary
2.1 Polycarbonate (PC) Segment by Type
2.1.1 Antistatic PC
2.1.2 Conductive PC
2.1.3 Fire Protection PC
2.1.4 Food Grade PC
2.2 Market Analysis by Application
2.2.1 Transportation
2.2.2 Electrical & Electronics
2.2.3 Construction
2.2.4 Packaging
2.2.5 Consumer Goods
2.2.6 Medical Devices
2.2.7 Others
2.3 Global Polycarbonate (PC) Market Comparison by Regions (2017-2027)
2.3.1 Global Polycarbonate (PC) Market Size (2017-2027)
2.3.2 North America Polycarbonate (PC) Status and Prospect (2017-2027)
2.3.3 Europe Polycarbonate (PC) Status and Prospect (2017-2027)
2.3.4 China Polycarbonate (PC) Status and Prospect (2017-2027)
2.3.5 Japan Polycarbonate (PC) Status and Prospect (2017-2027)
2.3.6 Southeast Asia Polycarbonate (PC) Status and Prospect (2017-2027)
2.4 Basic Product Information
2.4.1 Basic Product Information & Technology Development History
2.4.2 Product Manufacturing Process
2.4.3 Interview with Major Market Participants
2.4.4 High-end Market Analysis and Forecast
2.5 Coronavirus Disease 2019 (Covid-19): Polycarbonate (PC) Industry Impact
2.5.1 Polycarbonate (PC) Business Impact Assessment - Covid-19
2.5.2 Market Trends and Polycarbonate (PC) Potential Opportunities in the COVID-19 Landscape
2.5.3 Measures / Proposal against Covid-19
3 Competition by Manufacturer
3.1 Global Polycarbonate (PC) Sales and Market Share by Manufacturer (2017-2022)
3.2 Global Polycarbonate (PC) Revenue and Market Share by Manufacturer (2017-2022)
3.3 Global Polycarbonate (PC) Industry Concentration Ratio (CR5 and HHI)
3.4 Top 5 Polycarbonate (PC) Manufacturer Market Share
3.5 Top 10 Polycarbonate (PC) Manufacturer Market Share
3.6 Date of Key Manufacturers Enter into Polycarbonate (PC) Market
3.7 Key Manufacturers Polycarbonate (PC) Key Manufacturers
3.8 Mergers & Acquisitions Planning
4 Analysis of Polycarbonate (PC) Industry Key Manufacturers
4.1 SABIC
4.1.1 Compan Detail
4.1.2 SABIC Polycarbonate (PC) Product Introduction, Application and Specification
4.1.3 SABIC 166 Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.1.4 Main Business Overview
4.1.5 SABIC News
4.2 Bayer
4.2.1 Compan Detail
4.2.2 Bayer Polycarbonate (PC) Product Introduction, Application and Specification
4.2.3 Bayer Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.2.4 Main Business Overview
4.2.5 SABIC News
4.3 Lotte Chemicals
4.3.1 Compan Detail
4.3.2 Lotte Chemicals Polycarbonate (PC) Product Introduction, Application and Specification
4.3.3 Lotte Chemicals Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.3.4 Main Business Overview
4.3.5 Lotte Chemicals News
4.4 Mitsubishi
4.4.1 Compan Detail
4.4.2 Mitsubishi Polycarbonate (PC) Product Introduction, Application and Specification
4.4.3 Mitsubishi Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.4.4 Main Business Overview
4.4.5 Mitsubishi News
4.5 Chi Mei Corp
4.5.1 Compan Detail
4.5.2 Mitsubishi Polycarbonate (PC) Product Introduction, Application and Specification
4.5.3 Chi Mei Corp Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.5.4 Main Business Overview
4.5.5 Chi Mei Corp News
4.6 RTP Co
4.6.1 Compan Detail
4.6.2 RTP Co Polycarbonate (PC) Product Introduction, Application and Specification
4.6.3 RTP Co Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.6.4 Main Business Overview
4.6.5 RTP Co News
4.7 LG Chem
4.7.1 Compan Detail
4.7.2 LG Chem Polycarbonate (PC) Product Introduction, Application and Specification
4.7.3 LG Chem Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.7.4 Main Business Overview
4.7.4 Main Business Overview
4.8 Idemitsu Kosan
4.8.1 Compan Detail
4.8.2 Idemitsu Kosan Polycarbonate (PC) Product Introduction, Application and Specification
4.8.3 Idemitsu Kosan Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.8.4 Main Business Overview
4.8.5 Idemitsu Kosan News
4.9 Teijin
4.9.1 Compan Detail
4.9.2 Teijin Polycarbonate (PC) Product Introduction, Application and Specification
4.9.3 Teijin Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.9.4 Main Business Overview
4.9.5 Teijin News
4.10 Trinseo S.A
4.10.1 Compan Detail
4.10.2 Trinseo S.A Polycarbonate (PC) Product Introduction, Application and Specification
4.10.3 Trinseo S.A Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.10.4 Main Business Overview
4.10.5 Trinseo S.A News
4.11 GE
4.11.1 Compan Detail
4.11.2 GE Polycarbonate (PC) Product Introduction, Application and Specification
4.11.3 GE Polycarbonate (PC) Sales, Price, Cost, Gross Margin, and Revenue (2017-2022)
4.11.4 Main Business Overview
4.11.5 GE News
5 Global Polycarbonate (PC) Market Segment by Big Type
5.1 Global Polycarbonate (PC) Revenue, Sales and Market Share by Big Type (2017-2022)
5.1.1 Global Polycarbonate (PC) Sales and Market Share by Big Type (2017-2022)
5.1.2 Global Polycarbonate (PC) Revenue and Market Share by Big Type (2017-2022)
5.2 Antistatic PC Sales Growth Rate and Price
5.2.1 Global Antistatic PC Sales Growth Rate (2017-2022)
5.2.2 Global Antistatic PC Price (2017-2022)
5.3 Conductive PC Sales Growth Rate and Price
5.3.1 Global Conductive PC Sales Growth Rate (2017-2022)
5.3.2 Global Conductive PC Price (2017-2022)
5.4 Fire Protection PC Sales Growth Rate and Price
5.4.1 Global Fire Protection PC Sales Growth Rate (2017-2022)
5.4.2 Global Fire Protection PC Price (2017-2022)
5.5 Food Grade PC Sales Growth Rate and Price
5.5.1 Global Food Grade PC Sales Growth Rate (2017-2022)
5.5.2 Global Food Grade PC Price (2017-2022)
6 Global Polycarbonate (PC) Market Segment by Big Application
6.1 Global Polycarbonate (PC) Sales Market Share by Big Application (2017-2022)
6.2 Transportation Sales Growth Rate (2017-2022)
6.3 Electrical & Electronics Sales Growth Rate (2017-2022)
6.4 Construction Sales Growth Rate (2017-2022)
6.5 Packaging Sales Growth Rate (2017-2022)
6.6 Consumer Goods Sales Growth Rate (2017-2022)
6.7 Medical Devices Sales Growth Rate (2017-2022)
6.8 Others Sales Growth Rate (2017-2022)
7 Global Polycarbonate (PC) Forecast
7.1 Global Polycarbonate (PC) Revenue, Sales and Growth Rate (2022-2027)
7.2 Polycarbonate (PC) Market Forecast by Regions (2022-2027)
7.2.1 North America Polycarbonate (PC) Market Forecast (2022-2027)
7.2.2 Europe Polycarbonate (PC) Market Forecast (2022-2027)
7.2.3 China Polycarbonate (PC) Market Forecast (2022-2027)
7.2.4 Japan Polycarbonate (PC) Market Forecast (2022-2027)
7.2.5 Southeast Asia Polycarbonate (PC) Market Forecast (2022-2027)
7.2.6 Other Regions Polycarbonate (PC) Market Forecast (2022-2027)
7.3 Polycarbonate (PC) Market Forecast by Type (2022-2027)
7.3.1 Global Polycarbonate (PC) Sales Forecast by Type (2022-2027)
7.3.2 Global Polycarbonate (PC) Market Share Forecast by Type (2022-2027)
7.4 Polycarbonate (PC) Market Forecast by Application (2022-2027)
7.4.1 Global Polycarbonate (PC) Sales Forecast by Application (2022-2027)
7.4.2 Global Polycarbonate (PC) Market Share Forecast by Application (2022-2027)
8 Market Analysis
8.1.1 Market Overview
8.1.2 Market Opportunities
8.1.3 Market Risk
8.1.4 Market Driving Force
8.1.5 Porter's Five Forces Analysis
8.1.6 SWOT Analysis
9 Polycarbonate (PC) Related Market Analysis
9.1 Upstream Analysis
9.1.1 Macro Analysis of Upstream Markets
9.1.2 Key Players in Upstream Markets
9.1.3 Upstream Market Trend Analysis
9.1.4 Polycarbonate (PC) Manufacturing Cost Analysis
9.2 Downstream Market Analysis
9.2.1 Macro Analysis of Down Markets
9.2.2 Key Players in Down Markets
9.2.3 Downstream Market Trend Analysis
9.2.4 Sales Channel, Distributors, Traders and Dealers
10 Research Findings and Conclusion
List of Tables and Figures
Figure Product Picture Polycarbonate (PC)
Figure Market Concentration Ratio and Market Maturity Analysis of Polycarbonate (PC)
Figure Bottom-up and Top-down Approaches for This Report
Figure Part of Our External Database
Figure Part of Our External Database
Figure Key Executives Interviewed
Table Global Polycarbonate (PC) Market Size by Big Type
Figure Global Market Share of Polycarbonate (PC) by Big Type in 2021
Figure Antistatic PC Picture (2017-2022)
Figure Conductive PC Picture (2017-2022)
Figure Fire Protection PC Picture (2017-2022)
Global Polycarbonate (PC) Market Size by Big Application
Table Global Polycarbonate (PC) Market Size by Application
Figure Global Polycarbonate (PC) Market Share by Big Application in 2021
Figure Transportation Picture
Figure Electrical & Electronics Picture
Figure Construction Picture
Figure Packaging Picture
Figure Consumer Goods Picture
Figure Medical Devices Picture
Figure Others Picture
Table Global Polycarbonate (PC) Comparison by Regions (M USD) (2017-2027)
Figure Global Polycarbonate (PC) Market Size (Million US$) (2017-2027)
Figure North America Polycarbonate (PC) Revenue (Million US$) Growth Rate (2017-2027)
Figure Europe Polycarbonate (PC) Revenue (Million US$) Growth Rate (2017-2027)
Figure China Polycarbonate (PC) Revenue (Million US$) Growth Rate (2017-2027)
Figure Japan Polycarbonate (PC) Revenue (Million US$) Growth Rate (2017-2027)
Figure Southeast Asia Polycarbonate (PC) Revenue (Million US$) Growth Rate (2017-2027)
Table Business Impact Assessment - Covid-19
Table Market Trends and Polycarbonate (PC) Potential Opportunities in the COVID-19 Landscape
Table Measures / Proposal against Covid-19
Table Global Polycarbonate (PC) Sales by Manufacturer (2017-2022)
Figure Global Polycarbonate (PC) Sales Market Share by Manufacturer in 2021
Table Global Polycarbonate (PC) Revenue by Manufacturer (2017-2022)
Figure Global Polycarbonate (PC) Revenue Market Share by Manufacturer in 2021
Table Global Polycarbonate (PC) Manufacturers Market Concentration Ratio (CR5 and HHI)
Figure Top 5 Polycarbonate (PC) Manufacturer (Revenue) Market Share in 2021
Figure Top 10 Polycarbonate (PC) Manufacturer (Revenue) Market Share in 2021
Table Date of Key Manufacturers Enter into Polycarbonate (PC) Market
Table Key Manufacturers Polycarbonate (PC) Product Type
Table Mergers & Acquisitions Planning
Table SABIC Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of SABIC
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company One 2017-2022
Table Company One Main Business
Table Company One Recent Development
Table Bayer Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Bayer
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Bayer Recent Development
Table Lotte Chemicals Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Lotte Chemicals
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Lotte Chemicals Main Business
Table Lotte Chemicals Recent Development
Table Mitsubishi Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Mitsubishi
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Mitsubishi Main Business
Table Mitsubishi Recent Development
Table Mitsubishi Main Business
Table Mitsubishi Recent Development
Table Chi Mei Corp Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Chi Mei Corp
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Chi Mei Corp Main Business
Table Chi Mei Corp Recent Development
Table RTP Co Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of RTP Co
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table RTP Co Main Business
Table RTP Co Recent Development
Table LG Chem Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of LG Chem
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table LG Chem Main Business
Table LG Chem Recent Development
Table Idemitsu Kosan Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Idemitsu Kosan
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Idemitsu Kosan Main Business
Table Idemitsu Kosan Recent Development
Table Teijin Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Teijin
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Teijin Main Business
Table Teijin Recent Development
Table Trinseo S.A Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of Trinseo S.A
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table Trinseo S.A Main Business
Table Trinseo S.A Recent Development
Table GE Company Profile
Table Polycarbonate (PC) Product Introduction, Application and Specification of GE
Table Polycarbonate (PC) Sales (K Unit), Price (USD/Unit), Revenue (M USD) and Gross Margin of Company Two 2017-2022
Table GE Main Business
Table GE Recent Development
Figure Global Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure Global Polycarbonate (PC) Revenue and Growth Rate (2017-2022)
Table Global Polycarbonate (PC) Sales by Regions (2017-2022)
Figure Global Polycarbonate (PC) Sales Market Share by Regions in 2021
Table Global Polycarbonate (PC) Revenue by Regions (2017-2022)
Figure Global Polycarbonate (PC) Revenue Market Share by Regions in 2021
Figure North America Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure Europe Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure China Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure Japan Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure Southeast Asia Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Figure Other Regions Polycarbonate (PC) Sales and Growth Rate (2017-2022)
Table Global Polycarbonate (PC) Sales by Big Type (2017-2022)
Table Global Polycarbonate (PC) Sales Market Share by Big Type (2017-2022)
Figure Global Polycarbonate (PC) Sales Market Share by Big Type in 2019
Table Global Polycarbonate (PC) Revenue by Big Type (2017-2022)
Table Global Polycarbonate (PC) Revenue Market Share by Big Type (2017-2022)
Table Global Polycarbonate (PC) Revenue Market Share by Big Type in 2019
Figure Global Antistatic PC Sales Growth Rate (2017-2022)
Figure Global Antistatic PC Price (2017-2022)
Figure Global Conductive PC Sales Growth Rate (2017-2022)
Figure Global Conductive PC Price (2017-2022)
Figure Global Fire Protection PC Sales Growth Rate (2017-2022)
Figure Global Fire Protection PC Price (2017-2022)
Figure Global Food Grade PC Sales Growth Rate (2017-2022)
Table Global Polycarbonate (PC) Sales by Big Application (2017-2022)
Table Global Polycarbonate (PC) Sales Market Share by Big Application (2017-2022)
Figure Global Polycarbonate (PC) Sales Market Share by Big Application in 2019
Figure Global Transportation Sales Growth Rate (2017-2022)
Figure Global Electrical & Electronics Sales Growth Rate (2017-2022)
Figure Global Construction Sales Growth Rate (2017-2022)
Figure Global Packaging Sales Growth Rate (2017-2022)
Figure Global Consumer Goods Sales Growth Rate (2017-2022)
Figure Global Medical Devices Sales Growth Rate (2017-2022)
Figure Global Others Sales Growth Rate (2017-2022)
Figure Global Polycarbonate (PC) Sales and Growth Rate (2022-2027)
Figure Global Polycarbonate (PC) Revenue and Growth Rate (2022-2027)
Table Global Polycarbonate (PC) Sales Forecast by Regions (2022-2027)
Table Global Polycarbonate (PC) Market Share Forecast by Regions (2022-2027)
Figure North America Sales Polycarbonate (PC) Market Forecast (2022-2027)
Figure Europe Sales Polycarbonate (PC) Market Forecast (2022-2027)
Figure China Sales Polycarbonate (PC) Market Forecast (2022-2027)
Figure Japan Sales Polycarbonate (PC) Market Forecast (2022-2027)
Figure Southeast Asia Sales Polycarbonate (PC) Market Forecast (2022-2027)
Figure Other Regions Sales Polycarbonate (PC) Market Forecast (2022-2027)
Table Global Polycarbonate (PC) Sales Forecast by Type (2022-2027)
Table Global Polycarbonate (PC) Market Share Forecast by Type (2022-2027)
Table Global Polycarbonate (PC) Sales Forecast by Application (2022-2027)
Table Global Polycarbonate (PC) Market Share Forecast by Application (2022-2027)
Table Market Opportunities in Next Few Years
Table Market Risks Analysis
Table Market Drivers
Figure Porter's Five Forces Analysis
Table Macro Analysis of Upstream Markets
Table Key Players in Upstream Markets
Table Key Players of Upstream Markets
Table Key Raw Materials
Figure Price Trend of Key Raw Materials
Table Key Suppliers of Raw Materials
Figure Manufacturing Cost Structure of Polycarbonate (PC)
Table Macro Analysis of Down Markets
Table Key Players in Down Markets
Table Key Players of Downstream Markets
Figure Sales Channel
Figure North America Polycarbonate (PC) Sales (K Units) Growth Rate Forecast (2021-2025)
Figure North America Polycarbonate (PC) Revenue (Million US$) Growth Rate Forecast (2021-2025)
Figure Europe Polycarbonate (PC) Sales (K Units) Growth Rate Forecast (2021-2025)
Figure Europe Polycarbonate (PC) Revenue (Million US$) Growth Rate Forecast (2021-2025)
Figure Japan Polycarbonate (PC) Production (K Units) Growth Rate Forecast (2021-2025)
Figure Japan Polycarbonate (PC) Revenue (Million US$) Growth Rate Forecast (2021-2025)
Figure China Polycarbonate (PC) Production (K Units) Growth Rate Forecast (2021-2025)
Figure China Polycarbonate (PC) Revenue (Million US$) Growth Rate Forecast (2021-2025)
Figure Methodology/Research Approach
Figure Market Size Estimation
Figure Author List
SABIC
Bayer
Lotte Chemicals
Mitsubishi
Chi Mei Corp
RTP Co
LG Chem
Idemitsu Kosan
Teijin