This report aims to provide a comprehensive study of the global market for Orbital Transfer Vehicle (OTV). Report Highlights:
(1) Global Orbital Transfer Vehicle (OTV) market size (value), history data from 2018-2022 and forecast data from 2023 to 2029.
(2) Global Orbital Transfer Vehicle (OTV) market competitive situation, revenue and market share, from 2018 to 2022.
(3) China Orbital Transfer Vehicle (OTV) market competitive situation, revenue and market share, from 2018 to 2022.
(4) Global Orbital Transfer Vehicle (OTV) segment by region (or country), key regions cover the United States, Europe, Japan, South Korea, Southeast Asia and India, etc.
(5) Global Orbital Transfer Vehicle (OTV) segment by type and by application and regional segment by type and by application.
(6) Orbital Transfer Vehicle (OTV) industry supply chain, upstream, midstream and downstream analysis.
According to YH Research, the global market for Orbital Transfer Vehicle (OTV) should grow from US$ million in 2022 to US$ million by 2029, with a CAGR of % for the period of 2023-2029.
China Orbital Transfer Vehicle (OTV) market should grow from US$ million in 2022 to US$ million by 2029, with a CAGR of % for the period of 2023-2029.
The United States Orbital Transfer Vehicle (OTV) market should grow from US$ million in 2022 to US$ million by 2029, with a CAGR of % for the period of 2023-2029.
In terms of type, Electric Propulsion segment holds a share about % in 2022 and will reach % in 2029; while in terms of application, Government has a share approximately % in 2022 and will grow at a CAGR % during 2023 and 2029.
The global key manufacturers of Orbital Transfer Vehicle (OTV) include Exotrail, Spaceflight, Space Machines Company, Exolaunch, Atomos Space and Momentus Space, etc. In 2022, the global top five players hold a share approximately % in terms of revenue.
Market segment by regions, regional analysis covers
North America (United States, Canada and Mexico)
Europe (Germany, France, UK, Russia, Italy and Rest of Europe)
Asia-Pacific (China, Japan, South Korea, India, Southeast Asia, Australia and Rest of Asia-Pacific)
South America (Brazil, Rest of South America)
Middle East & Africa
Market segment by type, covers
Electric Propulsion
Chemical Propulsion
Market segment by application, can be divided into
Government
Commercial
Others
Market segment by players, this report covers
Exotrail
Spaceflight
Space Machines Company
Exolaunch
Atomos Space
Momentus Space
1 Market Overview
1.1 Product Overview and Scope of Orbital Transfer Vehicle (OTV)
1.2 Global Orbital Transfer Vehicle (OTV) Market Size and Forecast
1.3 China Orbital Transfer Vehicle (OTV) Market Size and Forecast
1.4 China Market Percentage in Global
1.4.1 By Revenue, China Orbital Transfer Vehicle (OTV) Share in Global Market, 2018-2029
1.4.2 Orbital Transfer Vehicle (OTV) Market Size: China VS Global, 2018-2029
1.5 Orbital Transfer Vehicle (OTV) Market Dynamics
1.5.1 Orbital Transfer Vehicle (OTV) Market Drivers
1.5.2 Orbital Transfer Vehicle (OTV) Market Restraints
1.5.3 Orbital Transfer Vehicle (OTV) Industry Trends
1.5.4 Orbital Transfer Vehicle (OTV) Industry Policy
2 Global Competitive Situation by Company
2.1 Global Orbital Transfer Vehicle (OTV) Revenue by Company (2018-2023)
2.2 Global Orbital Transfer Vehicle (OTV) Participants, Market Position (Tier 1, Tier 2 and Tier 3)
2.3 Global Orbital Transfer Vehicle (OTV) Concentration Ratio
2.4 Global Orbital Transfer Vehicle (OTV) Mergers & Acquisitions, Expansion Plans
2.5 Global Orbital Transfer Vehicle (OTV) Manufacturers Product Type
3 China Competitive Situation by Company
3.1 China Orbital Transfer Vehicle (OTV) Revenue by Company (2018-2023)
3.2 China Orbital Transfer Vehicle (OTV) Orbital Transfer Vehicle (OTV) Participants, Market Position (Tier 1, Tier 2 and Tier 3)
3.3 China Orbital Transfer Vehicle (OTV), Revenue Percentage of Local Players VS Foreign Manufacturers (2018-2023)
4 Industry Chain Analysis
4.1 Orbital Transfer Vehicle (OTV) Industry Chain
4.2 Orbital Transfer Vehicle (OTV) Upstream Analysis
4.3 Orbital Transfer Vehicle (OTV) Midstream Analysis
4.4 Orbital Transfer Vehicle (OTV) Downstream Analysis
5 Sights by Type
5.1 Orbital Transfer Vehicle (OTV) Classification
5.1.1 Electric Propulsion
5.1.2 Chemical Propulsion
5.2 By Type, Global Orbital Transfer Vehicle (OTV) Market Size & CAGR, 2018 VS 2022 VS 2029
5.3 By Type, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029
6 Sights by Application
6.1 Orbital Transfer Vehicle (OTV) Segment by Application
6.1.1 Government
6.1.2 Commercial
6.1.3 Others
6.2 By Application, Global Orbital Transfer Vehicle (OTV) Market Size & CAGR, 2018 VS 2022 VS 2029
6.3 By Application, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029
7 Sales Sights by Region
7.1 By Region, Global Orbital Transfer Vehicle (OTV) Market Size, 2018 VS 2022 VS 2029
7.2 By Region, Global Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
7.3 North America
7.3.1 North America Orbital Transfer Vehicle (OTV) Market Size & Forecasts, 2018-2029
7.3.2 By Country, North America Orbital Transfer Vehicle (OTV) Market Size Market Share
7.4 Europe
7.4.1 Europe Orbital Transfer Vehicle (OTV) Market Size & Forecasts, 2018-2029
7.4.2 By Country, Europe Orbital Transfer Vehicle (OTV) Market Size Market Share
7.5 Asia Pacific
7.5.1 Asia Pacific Orbital Transfer Vehicle (OTV) Market Size & Forecasts, 2018-2029
7.5.2 By Country/Region, Asia Pacific Orbital Transfer Vehicle (OTV) Market Size Market Share
7.6 South America
7.6.1 South America Orbital Transfer Vehicle (OTV) Market Size & Forecasts, 2018-2029
7.6.2 By Country, South America Orbital Transfer Vehicle (OTV) Market Size Market Share
7.7 Middle East & Africa
8 Sights by Country Level
8.1 By Country, Global Orbital Transfer Vehicle (OTV) Market Size & CAGR,2018 VS 2022 VS 2029
8.2 By Country, Global Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.3 U.S.
8.3.1 U.S. Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.3.2 By Company, U.S. Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.3.3 By Type, U.S. Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.3.4 By Application, U.S. Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.4 Europe
8.4.1 Europe Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.4.2 By Company, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.4.3 By Type, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.4.4 By Application, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.5 China
8.5.1 China Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.5.2 By Company, China Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.5.3 By Type, China Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.5.4 By Application, China Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.6 Japan
8.6.1 Japan Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.6.2 By Company, Japan Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.6.3 By Type, Japan Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.6.4 By Application, Japan Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.7 South Korea
8.7.1 South Korea Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.7.2 By Company, South Korea Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.7.3 By Type, South Korea Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.7.4 By Application, South Korea Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.8 Southeast Asia
8.8.1 Southeast Asia Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.8.2 By Company, Southeast Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.8.3 By Type, Southeast Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.8.4 By Application, Southeast Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.9 India
8.9.1 India Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.9.2 By Company, India Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.9.3 By Type, India Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.9.4 By Application, India Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.10 Middle East & Asia
8.10.1 Middle East & Asia Orbital Transfer Vehicle (OTV) Market Size, 2018-2029
8.10.2 By Company, Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
8.10.3 By Type, Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
8.10.4 By Application, Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
9 Global Manufacturers Profile
9.1 Exotrail
9.1.1 Exotrail Company Information, Head Office, Market Area and Industry Position
9.1.2 Exotrail Company Profile and Main Business
9.1.3 Exotrail Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.1.4 Exotrail Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.1.5 Exotrail Recent Developments
9.2 Spaceflight
9.2.1 Spaceflight Company Information, Head Office, Market Area and Industry Position
9.2.2 Spaceflight Company Profile and Main Business
9.2.3 Spaceflight Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.2.4 Spaceflight Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.2.5 Spaceflight Recent Developments
9.3 Space Machines Company
9.3.1 Space Machines Company Company Information, Head Office, Market Area and Industry Position
9.3.2 Space Machines Company Company Profile and Main Business
9.3.3 Space Machines Company Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.3.4 Space Machines Company Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.3.5 Space Machines Company Recent Developments
9.4 Exolaunch
9.4.1 Exolaunch Company Information, Head Office, Market Area and Industry Position
9.4.2 Exolaunch Company Profile and Main Business
9.4.3 Exolaunch Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.4.4 Exolaunch Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.4.5 Exolaunch Recent Developments
9.5 Atomos Space
9.5.1 Atomos Space Company Information, Head Office, Market Area and Industry Position
9.5.2 Atomos Space Company Profile and Main Business
9.5.3 Atomos Space Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.5.4 Atomos Space Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.5.5 Atomos Space Recent Developments
9.6 Momentus Space
9.6.1 Momentus Space Company Information, Head Office, Market Area and Industry Position
9.6.2 Momentus Space Company Profile and Main Business
9.6.3 Momentus Space Orbital Transfer Vehicle (OTV) Models, Specifications and Application
9.6.4 Momentus Space Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
9.6.5 Momentus Space Recent Developments
10 Conclusion
11 Appendix
11.1 Research Methodology
11.2 Data Source
11.2.1 Secondary Sources
11.2.2 Primary Sources
11.3 Market Estimation Model
11.4 Disclaimer
Tables and Figures
Table 1. Orbital Transfer Vehicle (OTV) Market Size & CAGR: China VS Global, (US$ Million), 2018-2029
Table 2. Orbital Transfer Vehicle (OTV) Market Restraints
Table 3. Orbital Transfer Vehicle (OTV) Market Trends
Table 4. Orbital Transfer Vehicle (OTV) Industry Policy
Table 5. Global Orbital Transfer Vehicle (OTV) Revenue by Company (2018-2023) & (US$ million)
Table 6. Global Orbital Transfer Vehicle (OTV) Revenue Market Share by Company (2018-2023)
Table 7. Global Orbital Transfer Vehicle (OTV) Manufacturers Market Concentration Ratio (CR3 and HHI)
Table 8. Global Orbital Transfer Vehicle (OTV) Mergers & Acquisitions, Expansion Plans
Table 9. Global Orbital Transfer Vehicle (OTV) Manufacturers Product Type
Table 10. China Orbital Transfer Vehicle (OTV) Revenue by Company (2018-2023) & (US$ million)
Table 11. China Orbital Transfer Vehicle (OTV) Revenue Market Share by Company (2018-2023)
Table 12. Global Key Players of Orbital Transfer Vehicle (OTV) Upstream (Raw Materials)
Table 13. Global Orbital Transfer Vehicle (OTV) Typical Customers
Table 14. Orbital Transfer Vehicle (OTV) Typical Distributors
Table 15. By Type, Global Orbital Transfer Vehicle (OTV) Revenue & CAGR, 2018 VS 2022 VS 2029, US$ Million
Table 16. By Application, Global Orbital Transfer Vehicle (OTV) Revenue & CAGR, 2018 VS 2022 VS 2029, US$ Million
Table 17. By Region, Global Orbital Transfer Vehicle (OTV) Market Size, 2018 VS 2022 VS 2029, US$ Million
Table 18. By Region, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, US$ Million
Table 19. By Country, Global Orbital Transfer Vehicle (OTV) Revenue & CAGR,2018 VS 2022 VS 2029, US$ Million
Table 20. By Country, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, US$ Million
Table 21. By Country, Global Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2029
Table 22. Exotrail Company Information, Head Office, Market Area and Industry Position
Table 23. Exotrail Company Profile and Main Business
Table 24. Exotrail Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 25. Exotrail Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 26. Exotrail Recent Developments
Table 27. Spaceflight Company Information, Head Office, Market Area and Industry Position
Table 28. Spaceflight Company Profile and Main Business
Table 29. Spaceflight Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 30. Spaceflight Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 31. Spaceflight Recent Developments
Table 32. Space Machines Company Company Information, Head Office, Market Area and Industry Position
Table 33. Space Machines Company Company Profile and Main Business
Table 34. Space Machines Company Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 35. Space Machines Company Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 36. Space Machines Company Recent Developments
Table 37. Exolaunch Company Information, Head Office, Market Area and Industry Position
Table 38. Exolaunch Company Profile and Main Business
Table 39. Exolaunch Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 40. Exolaunch Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 41. Exolaunch Recent Developments
Table 42. Atomos Space Company Information, Head Office, Market Area and Industry Position
Table 43. Atomos Space Company Profile and Main Business
Table 44. Atomos Space Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 45. Atomos Space Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 46. Atomos Space Recent Developments
Table 47. Momentus Space Company Information, Head Office, Market Area and Industry Position
Table 48. Momentus Space Company Profile and Main Business
Table 49. Momentus Space Orbital Transfer Vehicle (OTV) Models, Specifications and Application
Table 50. Momentus Space Orbital Transfer Vehicle (OTV) Revenue and Gross Margin, 2018-2023
Table 51. Momentus Space Recent Developments
List of Figure
Figure 1. Orbital Transfer Vehicle (OTV) Picture
Figure 2. Global Orbital Transfer Vehicle (OTV) Industry Market Size and Forecast (US$ million) & (2018-2029)
Figure 3. China Orbital Transfer Vehicle (OTV) Revenue and Forecast (US$ million) & (2018-2029)
Figure 4. 2018-2029 China Orbital Transfer Vehicle (OTV) Market Share of Global
Figure 5. Global Orbital Transfer Vehicle (OTV) Key Participants, Market Share, 2021 VS 2022 VS 2023
Figure 6. Global Orbital Transfer Vehicle (OTV) Market Share by Company, (Tier 1, Tier 2 and Tier 3), 2018-2023
Figure 7. China Orbital Transfer Vehicle (OTV) Key Participants, Market Share, 2021 VS 2022 VS 2023
Figure 8. China Orbital Transfer Vehicle (OTV) Revenue, Domestic VS Import Products, Proportion of China Local Players and Foreign Players, 2018-2023
Figure 9. Orbital Transfer Vehicle (OTV) Industry Chain
Figure 10. Electric Propulsion
Figure 11. Chemical Propulsion
Figure 12. By Type, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, US$ Million
Figure 13. By Type, Global Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2029
Figure 14. Government
Figure 15. Commercial
Figure 16. Others
Figure 17. By Application, Global Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, US$ Million
Figure 18. By Application, Global Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2029
Figure 19. By Region, Global Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2029
Figure 20. North America Orbital Transfer Vehicle (OTV) Revenue & Forecasts, 2018-2029, US$ Million
Figure 21. By Country, North America Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
Figure 22. Europe Orbital Transfer Vehicle (OTV) Revenue & Forecasts, 2018-2029, US$ Million
Figure 23. By Country, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
Figure 24. Asia Pacific Orbital Transfer Vehicle (OTV) Revenue & Forecasts, 2018-2029, US$ Million
Figure 25. By Country/Region, Asia Pacific Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
Figure 26. South America Orbital Transfer Vehicle (OTV) Revenue & Forecasts, 2018-2029, US$ Million
Figure 27. By Country, South America Orbital Transfer Vehicle (OTV) Revenue Market Share, 2018-2023
Figure 28. Middle East & Africa Orbital Transfer Vehicle (OTV) Revenue & Forecasts, 2018-2029, US$ Million
Figure 29. U.S. Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 30. By Company, U.S. Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 31. By Type, U.S. Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 32. By Application, U.S. Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 33. Europe Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 34. By Company, Europe Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 35. By Type, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 36. By Application, Europe Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 37. China Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 38. By Company, China Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 39. By Type, China Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 40. By Application, China Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 41. Japan Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 42. By Company, Japan Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 43. By Type, Japan Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 44. By Application, Japan Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 45. South Korea Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 46. By Company, South Korea Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 47. By Type, South Korea Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 48. By Application, South Korea Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 49. Southeast Asia Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 50. By Company, Southeast Asia Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 51. By Type, Southeast Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 52. By Application, Southeast Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 53. India Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 54. By Company, India Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 55. By Type, India Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 56. By Application, India Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 57. Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue, 2018-2029, (US$ Million)
Figure 58. By Company, Middle East & Asia Orbital Transfer Vehicle (OTV) Market Share, 2018-2023
Figure 59. By Type, Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 60. By Application, Middle East & Asia Orbital Transfer Vehicle (OTV) Revenue Market Share, 2022 VS 2029
Figure 61. Research Methodology
Figure 62. Breakdown of Primary Interviews
Figure 63. Bottom-up Approaches
Figure 64. Top-down Approaches
Reason to Buy