Simple vs Composite Reactions Explained

Simple vs Composite Reactions Explained

Reactions in EVE Online come in different complexity levels, and understanding the difference between Simple Reactions and Composite Reactions is essential if you want to move from basic industry into profitable large-scale production.

These two reaction types sit at the core of the moon and gas industry ecosystem, and they determine how raw materials are transformed into the advanced components used in Tech II manufacturing, structures, and capital production chains.

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What Are Reactions (Quick Context)

Reactions are industrial processes that:

Convert raw moon materials or gases into refined intermediate products.

They are run in Refineries or industrial structures and are a key bridge between resource extraction and advanced manufacturing.

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Simple Reactions Explained

Simple reactions are the most basic form of reaction processing.

They involve:

One type of input material being converted into one output product

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How Simple Reactions Work

• You load a single raw material into a refinery
• A reaction blueprint processes it
• You receive a refined intermediate product

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Example of a Simple Reaction

• Raw input: Moon ore material
• Output: Refined moon product

Example chain:

• Atmospheric Gases → Carbon Polymers
• Evaporite Deposits → Silicon Diborite
• Hydrocarbons → Plastics

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Key Characteristics

1. One-to-One Processing

• Single input type
• Single output product

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2. Lower Complexity

• Easier logistics
• Fewer materials to manage

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3. Stable Production Chains

• Predictable input requirements
• Easier to scale across multiple reactors

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4. Entry-Level Reaction Type

• Ideal for beginners in reaction industry
• Often first step into moon industry

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Advantages of Simple Reactions

• Easy to understand and manage
• Low logistical overhead
• Consistent output
• Good for learning reaction mechanics

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Disadvantages of Simple Reactions

• Lower value outputs compared to composite reactions
• Limited flexibility
• Often part of larger chains rather than final products

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Composite Reactions Explained

Composite reactions are more advanced industrial processes.

They involve:

Multiple input materials being combined into a single higher-value output

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How Composite Reactions Work

• You supply two or more different input materials
• The refinery processes them together
• A more advanced product is created

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Example of a Composite Reaction

Inputs:

• Material A (moon-derived)
• Material B (moon-derived or gas-derived)

Output:

• Advanced polymer or Tech II component material

Example chain:

• Carbon Polymers + Silicon Diborite → Advanced Composite Material
• Hydrocarbons + Evaporite Products → Structural Materials

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Key Characteristics

1. Multi-Input Processing

• Requires multiple supply streams
• More complex logistics

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2. Higher Value Outputs

• Used in advanced manufacturing chains
• Higher ISK per reaction cycle potential

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3. Dependency on Supply Chains

• Requires coordinated sourcing of materials
• Often tied to multiple mining operations

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4. Mid-to-Advanced Industry Tier

• Not beginner-friendly without logistics support
• Common in corporation-level industry

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Advantages of Composite Reactions

• Higher profit potential per cycle
• Essential for Tech II and capital production chains
• Better ISK efficiency when optimised
• Enables advanced industrial scaling

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Disadvantages of Composite Reactions

• Complex logistics and supply chains
• Higher risk of input shortages
• More difficult to balance profitability
• Requires careful market monitoring

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Simple vs Composite: Key Differences

Feature	Simple Reactions	Composite Reactions
Inputs	1 material	2+ materials
Output	Basic refined product	Advanced material
Complexity	Low	Medium–High
Logistics	Easy	Complex
Profit potential	Moderate	High
Skill requirement	Lower	Higher
Industry role	Entry-level processing	Advanced production chains

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Where They Fit in Industry

Both reaction types sit between mining and manufacturing:

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Simple Reaction Role:

Raw materials → Basic refinement

• First step in moon and gas processing
• Produces foundational industrial materials

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Composite Reaction Role:

Refined materials → Advanced components

• Feeds Tech II production chains
• Enables high-end manufacturing

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When to Use Simple Reactions

Simple reactions are best when:

• You are new to reaction industry
• You want low-maintenance production
• You are building foundational stockpiles
• You are scaling multiple reaction planets or structures

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When to Use Composite Reactions

Composite reactions are best when:

• You have stable supply chains
• You operate in a corporation or alliance industry setup
• You are producing Tech II or capital components
• You want higher ISK efficiency per structure

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Common Beginner Mistakes

1. Jumping straight into composite reactions

Without supply chains, this leads to material shortages.

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2. Underestimating logistics complexity

Composite reactions require reliable input flow.

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3. Ignoring market demand

Not all advanced materials sell consistently.

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4. Overbuilding reaction infrastructure

Unused reactors tie up ISK and fuel.

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How They Connect in Industry Chains

A typical progression looks like this:

Step 1 – Mining / Gas harvesting

Raw resources collected

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Step 2 – Simple Reactions

Basic refinement of materials

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Step 3 – Composite Reactions

Advanced material creation

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Step 4 – Manufacturing

Tech II / capital production

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Step 5 – Market

Final sale or corp usage

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Final Summary

Simple and composite reactions represent two key stages in EVE Online’s industrial processing system. Simple reactions focus on single-input refinement and provide an accessible entry point into reaction industry, while composite reactions combine multiple inputs to produce higher-value materials used in advanced manufacturing chains.

Simple reactions are ideal for beginners or low-maintenance setups, while composite reactions are suited for experienced industrialists managing complex supply chains and aiming for higher profit margins.

In essence, simple reactions build the foundation of industry, while composite reactions drive its high-value output economy.