1 Denitration Catalyst Market Overview 1.1 Product Overview and Scope of Denitration Catalyst 1.2 Denitration Catalyst Segment by Type 1.2.1 Global Denitration Catalyst Market Size Growth Rate Analysis by Type 2021 VS 2027 1.2.2 Plate Type 1.2.3 Honeycomb Type 1.2.4 Corrugated Plate Type 1.3 Denitration Catalyst Segment by Application 1.3.1 Global Denitration Catalyst Consumption Comparison by Application: 2016 VS 2021 VS 2027 1.3.2 Diesel Engines 1.3.3 Coal/Oil/Gas Fired Boilers 1.3.4 Automotive 1.3.5 Others 1.4 Global Market Growth Prospects 1.4.1 Global Denitration Catalyst Revenue Estimates and Forecasts (2016-2027) 1.4.2 Global Denitration Catalyst Production Capacity Estimates and Forecasts (2016-2027) 1.4.3 Global Denitration Catalyst Production Estimates and Forecasts (2016-2027) 1.5 Global Denitration Catalyst Market by Region 1.5.1 Global Denitration Catalyst Market Size Estimates and Forecasts by Region: 2016 VS 2021 VS 2027 1.5.2 North America Denitration Catalyst Estimates and Forecasts (2016-2027) 1.5.3 Europe Denitration Catalyst Estimates and Forecasts (2016-2027) 1.5.5 China Denitration Catalyst Estimates and Forecasts (2016-2027) 1.5.5 Japan Denitration Catalyst Estimates and Forecasts (2016-2027) 2 Market Competition by Manufacturers 2.1 Global Denitration Catalyst Production Capacity Market Share by Manufacturers (2016-2021) 2.2 Global Denitration Catalyst Revenue Market Share by Manufacturers (2016-2021) 2.3 Denitration Catalyst Market Share by Company Type (Tier 1, Tier 2 and Tier 3) 2.4 Global Denitration Catalyst Average Price by Manufacturers (2016-2021) 2.5 Manufacturers Denitration Catalyst Production Sites, Area Served, Product Types 2.6 Denitration Catalyst Market Competitive Situation and Trends 2.6.1 Denitration Catalyst Market Concentration Rate 2.6.2 Global 5 and 10 Largest Denitration Catalyst Players Market Share by Revenue 2.6.3 Mergers & Acquisitions, Expansion 3 Production and Capacity by Region 3.1 Global Production Capacity of Denitration Catalyst Market Share by Region (2016-2021) 3.2 Global Denitration Catalyst Revenue Market Share by Region (2016-2021) 3.3 Global Denitration Catalyst Production, Revenue, Price and Gross Margin (2016-2021) 3.4 North America Denitration Catalyst Production 3.4.1 North America Denitration Catalyst Production Growth Rate (2016-2021) 3.4.2 North America Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 3.5 Europe Denitration Catalyst Production 3.5.1 Europe Denitration Catalyst Production Growth Rate (2016-2021) 3.5.2 Europe Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 3.6 China Denitration Catalyst Production 3.6.1 China Denitration Catalyst Production Growth Rate (2016-2021) 3.6.2 China Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 3.7 Japan Denitration Catalyst Production 3.7.1 Japan Denitration Catalyst Production Growth Rate (2016-2021) 3.7.2 Japan Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 4 Global Denitration Catalyst Consumption by Region 4.1 Global Denitration Catalyst Consumption by Region 4.1.1 Global Denitration Catalyst Consumption by Region 4.1.2 Global Denitration Catalyst Consumption Market Share by Region 4.2 North America 4.2.1 North America Denitration Catalyst Consumption by Country 4.2.2 U.S. 4.2.3 Canada 4.3 Europe 4.3.1 Europe Denitration Catalyst Consumption by Country 4.3.2 Germany 4.3.3 France 4.3.4 U.K. 4.3.5 Italy 4.3.6 Russia 4.4 Asia Pacific 4.4.1 Asia Pacific Denitration Catalyst Consumption by Region 4.4.2 China 4.4.3 Japan 4.4.4 South Korea 4.4.5 Taiwan 4.4.6 Southeast Asia 4.4.7 India 4.4.8 Australia 4.5 Latin America 4.5.1 Latin America Denitration Catalyst Consumption by Country 4.5.2 Mexico 4.5.3 Brazil 5 Production, Revenue, Price Trend by Type 5.1 Global Denitration Catalyst Production Market Share by Type (2016-2021) 5.2 Global Denitration Catalyst Revenue Market Share by Type (2016-2021) 5.3 Global Denitration Catalyst Price by Type (2016-2021) 6 Consumption Analysis by Application 6.1 Global Denitration Catalyst Consumption Market Share by Application (2016-2021) 6.2 Global Denitration Catalyst Consumption Growth Rate by Application (2016-2021) 7 Key Companies Profiled 7.1 Johnson Matthey 7.1.1 Johnson Matthey Denitration Catalyst Corporation Information 7.1.2 Johnson Matthey Denitration Catalyst Product Portfolio 7.1.3 Johnson Matthey Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.1.4 Johnson Matthey Main Business and Markets Served 7.1.5 Johnson Matthey Recent Developments/Updates 7.2 Nippon Shokubai 7.2.1 Nippon Shokubai Denitration Catalyst Corporation Information 7.2.2 Nippon Shokubai Denitration Catalyst Product Portfolio 7.2.3 Nippon Shokubai Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.2.4 Nippon Shokubai Main Business and Markets Served 7.2.5 Nippon Shokubai Recent Developments/Updates 7.3 Haldor Topsoe 7.3.1 Haldor Topsoe Denitration Catalyst Corporation Information 7.3.2 Haldor Topsoe Denitration Catalyst Product Portfolio 7.3.3 Haldor Topsoe Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.3.4 Haldor Topsoe Main Business and Markets Served 7.3.5 Haldor Topsoe Recent Developments/Updates 7.4 Hitachi Zosen Corporation 7.4.1 Hitachi Zosen Corporation Denitration Catalyst Corporation Information 7.4.2 Hitachi Zosen Corporation Denitration Catalyst Product Portfolio 7.4.3 Hitachi Zosen Corporation Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.4.4 Hitachi Zosen Corporation Main Business and Markets Served 7.4.5 Hitachi Zosen Corporation Recent Developments/Updates 7.5 JGC C&C 7.5.1 JGC C&C Denitration Catalyst Corporation Information 7.5.2 JGC C&C Denitration Catalyst Product Portfolio 7.5.3 JGC C&C Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.5.4 JGC C&C Main Business and Markets Served 7.5.5 JGC C&C Recent Developments/Updates 7.6 Cormethch 7.6.1 Cormethch Denitration Catalyst Corporation Information 7.6.2 Cormethch Denitration Catalyst Product Portfolio 7.6.3 Cormethch Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.6.4 Cormethch Main Business and Markets Served 7.6.5 Cormethch Recent Developments/Updates 7.7 Rafako 7.7.1 Rafako Denitration Catalyst Corporation Information 7.7.2 Rafako Denitration Catalyst Product Portfolio 7.7.3 Rafako Denitration Catalyst Production Capacity, Revenue, Price and Gross Margin (2016-2021) 7.7.4 Rafako Main Business and Markets Served 7.7.5 Rafako Recent Developments/Updates 8 Denitration Catalyst Manufacturing Cost Analysis 8.1 Denitration Catalyst Key Raw Materials Analysis 8.1.1 Key Raw Materials 8.1.2 Key Raw Materials Price Trend 8.1.3 Key Suppliers of Raw Materials 8.2 Proportion of Manufacturing Cost Structure 8.3 Manufacturing Process Analysis of Denitration Catalyst 8.4 Denitration Catalyst Industrial Chain Analysis 9 Marketing Channel, Distributors and Customers 9.1 Marketing Channel 9.2 Denitration Catalyst Distributors List 9.3 Denitration Catalyst Customers 10 Market Dynamics 10.1 Denitration Catalyst Industry Trends 10.2 Denitration Catalyst Growth Drivers 10.3 Denitration Catalyst Market Challenges 10.4 Denitration Catalyst Market Restraints 11 Production and Supply Forecast 11.1 Global Forecasted Production of Denitration Catalyst by Region (2022-2027) 11.2 North America Denitration Catalyst Production, Revenue Forecast (2022-2027) 11.3 Europe Denitration Catalyst Production, Revenue Forecast (2022-2027) 11.4 China Denitration Catalyst Production, Revenue Forecast (2022-2027) 11.5 Japan Denitration Catalyst Production, Revenue Forecast (2022-2027) 12 Consumption and Demand Forecast 12.1 Global Forecasted Demand Analysis of Denitration Catalyst 12.2 North America Forecasted Consumption of Denitration Catalyst by Country 12.3 Europe Market Forecasted Consumption of Denitration Catalyst by Country 12.4 Asia Pacific Market Forecasted Consumption of Denitration Catalyst by Region 12.5 Latin America Forecasted Consumption of Denitration Catalyst by Country 13 Forecast by Type and by Application (2022-2027) 13.1 Global Production, Revenue and Price Forecast by Type (2022-2027) 13.1.1 Global Forecasted Production of Denitration Catalyst by Type (2022-2027) 13.1.2 Global Forecasted Revenue of Denitration Catalyst by Type (2022-2027) 13.1.3 Global Forecasted Price of Denitration Catalyst by Type (2022-2027) 13.2 Global Forecasted Consumption of Denitration Catalyst by Application (2022-2027) 14 Research Finding and Conclusion 15 Methodology and Data Source 15.1 Methodology/Research Approach 15.1.1 Research Programs/Design 15.1.2 Market Size Estimation 15.1.3 Market Breakdown and Data Triangulation 15.2 Data Source 15.2.1 Secondary Sources 15.2.2 Primary Sources 15.3 Author List 15.4 Disclaimer

List of Tables Table 1. Global Denitration Catalyst Market Size by Type (K MT) & (US$ Million) (2021 VS 2027) Table 2. Global Denitration Catalyst Consumption (K MT) Comparison by Application: 2016 VS 2021 VS 2027 Table 3. Denitration Catalyst Market Size Comparison by Region: 2016 VS 2021 VS 2027 Table 4. Global Denitration Catalyst Production Capacity (K MT) by Manufacturers Table 5. Global Denitration Catalyst Production (K MT) by Manufacturers (2016-2021) Table 6. Global Denitration Catalyst Production Market Share by Manufacturers (2016-2021) Table 7. Global Denitration Catalyst Revenue (US$ Million) by Manufacturers (2016-2021) Table 8. Global Denitration Catalyst Revenue Share by Manufacturers (2016-2021) Table 9. Company Type (Tier 1, Tier 2 and Tier 3) & (based on the Revenue in Denitration Catalyst as of 2020) Table 10. Global Market Denitration Catalyst Average Price (USD/MT) of Key Manufacturers (2016-2021) Table 11. Manufacturers Denitration Catalyst Production Sites and Area Served Table 12. Manufacturers Denitration Catalyst Product Types Table 13. Mergers & Acquisitions, Expansion Table 14. Global Denitration Catalyst Production Capacity (K MT) by Region (2016-2021) Table 15. Global Denitration Catalyst Production (K MT) by Region (2016-2021) Table 16. Global Denitration Catalyst Revenue (US$ Million) by Region (2016-2021) Table 17. Global Denitration Catalyst Revenue Market Share by Region (2016-2021) Table 18. Global Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 19. North America Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 20. Europe Denitration Catalyst Production (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 21. China Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 22. Japan Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 23. Global Denitration Catalyst Consumption Market by Region (2016-2021) & (K MT) Table 24. Global Denitration Catalyst Consumption Market Share by Region (2016-2021) Table 25. North America Denitration Catalyst Consumption by Country (2016-2021) & (K MT) Table 26. Europe Denitration Catalyst Consumption by Country (2016-2021) & (K MT) Table 27. Asia Pacific Denitration Catalyst Consumption by Region (2016-2021) & (K MT) Table 28. Latin America Denitration Catalyst Consumption by Countries (2016-2021) & (K MT) Table 29. Global Denitration Catalyst Production (K MT) by Type (2016-2021) Table 30. Global Denitration Catalyst Production Market Share by Type (2016-2021) Table 31. Global Denitration Catalyst Revenue (US$ Million) by Type (2016-2021) Table 32. Global Denitration Catalyst Revenue Share by Type (2016-2021) Table 33. Global Denitration Catalyst Price (USD/MT) by Type (2016-2021) Table 34. Global Denitration Catalyst Consumption by Application (2016-2021) & (K MT) Table 35. Global Denitration Catalyst Consumption Market Share by Application (2016-2021) Table 36. Global Denitration Catalyst Consumption Growth Rate by Application (2016-2021) Table 37. Johnson Matthey Denitration Catalyst Corporation Information Table 38. Johnson Matthey Specification and Application Table 39. Johnson Matthey Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 40. Johnson Matthey Main Business and Markets Served Table 41. Johnson Matthey Recent Developments/Updates Table 42. Nippon Shokubai Denitration Catalyst Corporation Information Table 43. Nippon Shokubai Specification and Application Table 44. Nippon Shokubai Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 45. Nippon Shokubai Main Business and Markets Served Table 46. Nippon Shokubai Recent Developments/Updates Table 47. Haldor Topsoe Denitration Catalyst Corporation Information Table 48. Haldor Topsoe Specification and Application Table 49. Haldor Topsoe Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 50. Haldor Topsoe Main Business and Markets Served Table 51. Haldor Topsoe Recent Developments/Updates Table 52. Hitachi Zosen Corporation Denitration Catalyst Corporation Information Table 53. Hitachi Zosen Corporation Specification and Application Table 54. Hitachi Zosen Corporation Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 55. Hitachi Zosen Corporation Main Business and Markets Served Table 56. Hitachi Zosen Corporation Recent Developments/Updates Table 57. JGC C&C Denitration Catalyst Corporation Information Table 58. JGC C&C Specification and Application Table 59. JGC C&C Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 60. JGC C&C Main Business and Markets Served Table 61. JGC C&C Recent Developments/Updates Table 62. Cormethch Denitration Catalyst Corporation Information Table 63. Cormethch Specification and Application Table 64. Cormethch Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 65. Cormethch Main Business and Markets Served Table 66. Cormethch Recent Developments/Updates Table 67. Rafako Denitration Catalyst Corporation Information Table 68. Rafako Specification and Application Table 69. Rafako Denitration Catalyst Production Capacity (K MT), Revenue (US$ Million), Price (USD/MT) and Gross Margin (2016-2021) Table 70. Rafako Main Business and Markets Served Table 71. Rafako Recent Developments/Updates Table 72. Production Base and Market Concentration Rate of Raw Material Table 73. Key Suppliers of Raw Materials Table 74. Denitration Catalyst Distributors List Table 75. Denitration Catalyst Customers List Table 76. Denitration Catalyst Market Trends Table 77. Denitration Catalyst Growth Drivers Table 78. Denitration Catalyst Market Challenges Table 79. Denitration Catalyst Market Restraints Table 80. Global Denitration Catalyst Production (K MT) Forecast by Region (2022-2027) Table 81. North America Denitration Catalyst Consumption Forecast by Country (2022-2027) & (K MT) Table 82. Europe Denitration Catalyst Consumption Forecast by Country (2022-2027) & (K MT) Table 83. Asia Pacific Denitration Catalyst Consumption Forecast by Region (2022-2027) & (K MT) Table 84. Latin America Denitration Catalyst Consumption Forecast by Country (2022-2027) & (K MT) Table 85. Global Denitration Catalyst Production Forecast by Type (2022-2027) & (K MT) Table 86. Global Denitration Catalyst Revenue Forecast by Type (2022-2027) & (US$ Million) Table 87. Global Denitration Catalyst Price Forecast by Type (2022-2027) & (USD/MT) Table 88. Global Denitration Catalyst Consumption (K MT) Forecast by Application (2022-2027) Table 89. Research Programs/Design for This Report Table 90. Key Data Information from Secondary Sources Table 91. Key Data Information from Primary Sources List of Figures Figure 1. Product Picture of Denitration Catalyst Figure 2. Global Denitration Catalyst Market Share by Type: 2020 VS 2027 Figure 3. Plate Type Product Picture Figure 4. Honeycomb Type Product Picture Figure 5. Corrugated Plate Type Product Picture Figure 6. Global Denitration Catalyst Market Share by Application: 2020 VS 2027 Figure 7. Diesel Engines Figure 8. Coal/Oil/Gas Fired Boilers Figure 9. Automotive Figure 10. Others Figure 11. Global Denitration Catalyst Revenue (US$ Million), 2016 VS 2021 VS 2027 Figure 12. Global Denitration Catalyst Revenue (US$ Million) (2016-2027) Figure 13. Global Denitration Catalyst Production Capacity (K MT) & (2016-2027) Figure 14. Global Denitration Catalyst Production (K MT) & (2016-2027) Figure 15. North America Denitration Catalyst Revenue (US$ Million) and Growth Rate (2016-2027) Figure 16. Europe Denitration Catalyst Revenue (US$ Million) and Growth Rate (2016-2027) Figure 17. China Denitration Catalyst Revenue (US$ Million) and Growth Rate (2016-2027) Figure 18. Japan Denitration Catalyst Revenue (US$ Million) and Growth Rate (2016-2027) Figure 19. Denitration Catalyst Production Share by Manufacturers in 2020 Figure 20. Global Denitration Catalyst Revenue Share by Manufacturers in 2020 Figure 21. Denitration Catalyst Market Share by Company Type (Tier 1, Tier 2 and Tier 3): 2016 VS 2020 Figure 22. Global Market Denitration Catalyst Average Price (USD/MT) of Key Manufacturers in 2020 Figure 23. The Global 5 and 10 Largest Players: Market Share by Denitration Catalyst Revenue in 2020 Figure 24. Global Denitration Catalyst Production Market Share by Region (2016-2021) Figure 25. North America Denitration Catalyst Production (K MT) Growth Rate (2016-2021) Figure 26. Europe Denitration Catalyst Production (K MT) Growth Rate (2016-2021) Figure 27. China Denitration Catalyst Production (K MT) Growth Rate (2016-2021) Figure 28. Japan Denitration Catalyst Production (K MT) Growth Rate (2016-2021) Figure 29. Global Denitration Catalyst Consumption Market Share by Region (2016-2021) Figure 30. Global Denitration Catalyst Consumption Market Share by Region in 2020 Figure 31. North America Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 32. North America Denitration Catalyst Consumption Market Share by Country in 2020 Figure 33. Canada Denitration Catalyst Consumption Growth Rate (2016-2021) & (K MT) Figure 34. U.S. Denitration Catalyst Consumption Growth Rate (2016-2021) & (K MT) Figure 35. Europe Denitration Catalyst Consumption Growth Rate (2016-2021) & (K MT) Figure 36. Europe Denitration Catalyst Consumption Market Share by Country in 2020 Figure 37. Germany America Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 38. France Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 39. U.K. Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 40. Italy Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 41. Russia Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 42. Asia Pacific Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 43. Asia Pacific Denitration Catalyst Consumption Market Share by Regions in 2020 Figure 44. China Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 45. Japan Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 46. South Korea Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 47. Taiwan Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 48. Southeast Asia Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 49. India Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 50. Australia Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 51. Latin America Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 52. Latin America Denitration Catalyst Consumption Market Share by Country in 2020 Figure 53. Mexico Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 54. Brazil Denitration Catalyst Consumption and Growth Rate (2016-2021) & (K MT) Figure 55. Production Market Share of Denitration Catalyst by Type (2016-2021) Figure 56. Production Market Share of Denitration Catalyst by Type in 2020 Figure 57. Revenue Share of Denitration Catalyst by Type (2016-2021) Figure 58. Revenue Market Share of Denitration Catalyst by Type in 2020 Figure 59. Global Denitration Catalyst Consumption Market Share by Application (2016-2021) Figure 60. Global Denitration Catalyst Consumption Market Share by Application in 2020 Figure 61. Global Denitration Catalyst Consumption Growth Rate by Application (2016-2021) Figure 62. Key Raw Materials Price Trend Figure 63. Manufacturing Cost Structure of Denitration Catalyst Figure 64. Manufacturing Process Analysis of Denitration Catalyst Figure 65. Denitration Catalyst Industrial Chain Analysis Figure 66. Channels of Distribution Figure 67. Distributors Profiles Figure 68. Global Denitration Catalyst Production Market Share Forecast by Region (2022-2027) Figure 69. North America Denitration Catalyst Production (K MT) Growth Rate Forecast (2022-2027) Figure 70. Europe Denitration Catalyst Production (K MT) Growth Rate Forecast (2022-2027) Figure 71. China Denitration Catalyst Production (K MT) Growth Rate Forecast (2022-2027) Figure 72. Japan Denitration Catalyst Production (K MT) Growth Rate Forecast (2022-2027) Figure 73. Global Forecasted Demand Analysis of Denitration Catalyst (2015-2027) & (K MT) Figure 74. Global Denitration Catalyst Production Market Share Forecast by Type (2022-2027) Figure 75. Global Denitration Catalyst Revenue Market Share Forecast by Type (2022-2027) Figure 76. Global Denitration Catalyst Consumption Forecast by Application (2022-2027) Figure 77. Bottom-up and Top-down Approaches for This Report Figure 78. Data Triangulation

Johnson Matthey Nippon Shokubai Haldor Topsoe Hitachi Zosen Corporation JGC C&C Cormethch Rafako