Week 1 | Session 1: Fundamentals of Supply Chain

Course: Supply Chain Digitization

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What is a Supply Chain?

Note

Definition: An interconnected journey of raw materials, components, and finished goods - from origin (before their assembly) all the way to sale to the final customer.

The word “chain” represents a series of links, where each link is a player or entity in the supply chain.

Purpose: Ensure products are manufactured and reach the final customer at the right time, in the right quantity, and at the right quality.

Key Players (in order)

1. Raw Material Supplier - delivers raw material at the right time, quantity, and quality.
2. Manufacturer - converts raw materials into finished goods.
3. Warehouse - stores finished goods and enables distribution.
4. Distributor - moves product closer to regional markets.
5. Retailer - last commercial touchpoint before the end customer.
6. Customer - the final recipient of the finished product.

Tip

Key Takeaway: The product moves in different forms and shapes at each stage of the supply chain. Not all supply chains are the same - structure depends entirely on product type and business model.

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Types of Supply Chains - Industry Examples

(a) Automobile Supply Chain

Case Study

• Complex, multi-tier supply chain with 1,000+ raw material suppliers
• Sub-components include dashboards, transmission systems, and engines - each requiring dedicated suppliers
• Final assembly: ~1,000 unique components assembled at this stage
• Distribution: can include multi-layer distribution centres between the assembler and dealers, depending on geography

Flow:

RM Suppliers → Sub-component Manufacturers → Interior / Powertrain Assemblers → Final Assembly → Dealers → Consumers

RM Suppliers~1,000

Raw materials

Raw materials

Raw materials

Tier 2 Suppliers~500

Dashboard mfr.

Transmission mfr.

Engine mfr.

Tier 1 Suppliers~102

Interior assembler

Powertrain assembler

Manufacturer~1,000 components

Final assembler

Dealers

Dealer

Dealer

Dealer

Consumer

Consumers

Automobile supply chain - a multi-tier network narrowing ~1,000 raw-material suppliers down to a single final assembler, then fanning back out through dealers to consumers. Product flows left → right; demand signals flow right → left.

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(b) Pharmaceutical Supply Chain

Case Study

• Two key input types: (1) Raw Materials (RM) and (2) Packaging Materials (PM)
• Critical triad: RM Supplier ↔ Manufacturer ↔ R&D - R&D drives updated product requirements that feed back into supplier specifications
• Inbound logistics handled via rail and road; exports handled by export agents and C&F agents
• The distribution network is complex by necessity - required to reach patients at every last-mile point

Flow:

RM/PM Suppliers → Manufacturers → Central Warehouse → Distributors / Stockists / Semi-Wholesalers → Retailers / Pharmacies / Hospitals → Consumers

RM & PM
Suppliers

→Inbound logistics (rail / road)

Manufacturers⟳ R&D feedback loop

→Outbound logistics

Central
warehouses

→

Clearing & forwarding
/ export agents

→

Distributorsstockists · semi-wholesalers

→

Retailers · pharmacies
· hospitals

→

Consumers

Pharmaceutical supply chain - two input streams (raw & packaging materials) feed manufacturing, where an R&D loop continuously updates specifications, before a deliberately dense distribution web reaches every last-mile point.

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(c) Oil & Gas Supply Chain

Case Study

• Distinctive feature: Transportation mode changes at every stage of the supply chain.
• The processing method and storage format also transform across stages.

Flow:

Exploration → Production → Crude Oil Storage → Refinery (distillation etc.) → Storage Terminals → Retail / Industrial / Commercial Markets

Transport modes at each stage:

Stage	Mode(s)
Exploration → Production	Pipeline or ship
Refinery → Storage Terminals	Pipeline or ship
Storage Terminals → End Markets	Pipeline / Rail / Road / Tanker

Exploration

→Pipeline / ship

Production

→Pipeline / ship

Crude oil
storage

→Pipeline / ship

Refinerydistillation etc.

→Pipeline / ship

Storage
terminals

→Pipeline / rail / road / tanker

Retail · industrial
· commercial markets

Oil & gas supply chain - its defining feature is that the transport mode and storage format change at nearly every stage, from pipelines and ships upstream to rail, road and tankers for final distribution.

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(d) E-Commerce Supply Chain

Case Study

• Key difference vs. traditional SC: No manufacturer or RM supplier is visible within this supply chain - only product suppliers and a 3PL (Third Party Logistics) provider.
• If you trace the supplier’s supply chain, manufacturers and RM suppliers reappear - they simply fall outside the scope of the e-commerce perspective.

Two parallel flows:

Flow	What it carries
Information flow (black / blue line)	Order details - product type, quantity, price
Physical flow (orange line)	Physical movement of goods

Flow:

Customer Order → 3PL Central Warehouse → Supplier → 3PL Central Warehouse → 3PL Local Warehouse → Last-Mile Delivery → Customer

Customer
order

→

E-commerce
platform

→

Supplier

→

3PL central
warehouse

→

3PL local
warehouse

→last-mile delivery

Customer

Physical flow - movement of goodsInformation flow - order type, quantity, price

E-commerce supply chain - no manufacturer or raw-material supplier is visible within scope; only product suppliers and a 3PL provider. Information flow (orders) runs in parallel with, and is as important as, the physical flow of goods.

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Key Concepts to Remember

Note

Core Principle: Supply chain structure is not fixed. It depends on product type, business model, and geography. Not every player is present in every supply chain - for example, there is no manufacturer visible in an e-commerce SC, and no raw material extraction in the e-commerce scope.

• The number of tiers and layers in a supply chain directly impacts its complexity and coordination effort.
• Good exercise: Pick any product → trace its supply chain → identify each player and their role.

Quick Comparison (for revision)

SC Type	Defining Characteristic
Automobile	Most tiers, 1,000+ suppliers, highest assembly complexity
Pharma	R&D plays an active role; last-mile reach is critical; complex distribution web
Oil & Gas	Unique transport modes (pipeline/ship); product transforms at the refinery stage
E-Commerce	Information flow as important as physical flow; 3PL-centric; no in-SC manufacturing

Tip

Exam Angle: “Explain with examples why all supply chains are not the same.” Use 2-3 of the examples above and highlight: players involved, transport modes, product transformation at each stage, and the role of information flow.