Why “Plus One” Sourcing Is Crucial in a Time of Changing Tariffs

Tariff policies are shifting faster than most brands can adjust, and companies relying on a single sourcing country are feeling the squeeze. Each time rates change, landed costs spike, lead times shift, and supply chains that once felt predictable suddenly become unstable.

For growing brands, this volatility makes it harder to protect margins and keep customers happy. Plus One sourcing was born due to the strain of relying on a single source (that could suddenly face tariffs or limited capacity). It’s often known as “China Plus One” sourcing, because it refers to having your main supplier as China and then expanding manufacturing to one other country you can shift to as needed.

Instead of replacing your primary sourcing hub, strategically adding a secondary location helps to balance cost, risk, and operational flexibility. In this article, I’ll break down why this approach has become essential in today’s unpredictable trade environment.

The Rising Challenge of Tariff Volatility

Tariff changes aren’t as simple as paperwork. Global tariff changes impact the entire supply chain. When rates increase, landed costs climb fast, cutting into already tight margins. Production schedules can also shift, costs can rise, and brands often have to rethink pricing or slow down restocks to manage the impact.

For eCommerce and Direct-to-Consumer (DTC) brands that depend on steady inventory flow, these shifts create pressure.

For example, changes in trade policies between major manufacturing hubs and consumer markets can influence everything from raw material availability to final product pricing. Even small adjustments can ripple through a brand’s sourcing strategy and fulfillment timelines.

This is why staying proactive is important. Companies that anticipate volatility are better positioned to protect their supply, control costs, and stay competitive instead of simply reacting to it. Having a flexible supply chain strategy helps brands avoid these surprises while delivering a consistent experience to their customers.

What is Plus One Sourcing and How Can It Help Your Business?

Plus One sourcing is a strategy where a brand keeps its primary manufacturing country while adding at least one alternative sourcing location. The goal isn’t to replace the original supplier, but to reduce risk and create more flexibility when trade conditions shift.

For example, Brand A may source most of its goods from China, but also works with factories in Vietnam and the Philippines as secondary options. If tariffs rise or supply chain issues hit one region, the brand can adjust production without disrupting inventory flow.

Adding a secondary sourcing hub provides several advantages for growing eCommerce and DTC brands, including:

• Reduced tariff risk: By avoiding overdependence on a single country, brands are less exposed to sudden tariff increases or shifting trade policies.
• Supply chain resilience: If geopolitical events, natural disasters, or trade disputes affect one region, operations can continue through the alternative source.
• Cost optimization: Diversifying production lets brands balance sourcing expenses and explore trade agreements that may offer lower duties or more favorable import terms.
• Customer satisfaction: When your supply chain is steady, you avoid the delays and price increases that frustrate buyers. This helps maintain trust and keeps customers coming back.

What Could Go Wrong with Plus One Sourcing?

While Plus One sourcing strengthens your supply chain, it also comes with challenges that brands must plan for. The good news? Most of these issues are manageable with the right strategy and support, and it’s possible to get the benefits without the headaches caused by diversification.

Here are some of the main challenges of Plus One sourcing and tips to overcome them.

Higher upfront costs in diversifying

Building relationships with new suppliers, testing product samples, and setting up new production lines can increase initial costs.

Tip: Start small. Shift a limited group of SKUs or a small percentage of your order volume to the secondary supplier. This lets you test quality, lead times, and communication without having to commit your full budget.

Managing relationships with multiple suppliers

Working with more than one manufacturing partner means more touchpoints and more negotiations, leaving more room for miscommunication.

Tip: Standardize your processes. Clear documentation, shared quality standards, and regular supplier check-ins help keep everyone aligned. Many brands also use supply chain platforms or sourcing partners to simplify day-to-day coordination to prevent miscommunication.

Logistics complexity

New sourcing regions often mean new shipping lanes, new timelines, and new landed cost structures. If unmanaged, this can lead to delays or even unexpected expenses.

Tip: Partner with logistics experts who can support multiple sourcing points, optimize shipping rates, and streamline fulfillment. iDrive Logistics, for example, helps brands navigate this complexity by integrating shipping, visibility, and cost optimization across all sourcing locations.

Pros and Cons of Plus One Sourcing

Plus One sourcing gives brands more flexibility, but also adds new layers of responsibility. Understanding both sides can help you decide how to build the right strategy for your business. Here are some advantages and disadvantages:

What are the pros of Plus One sourcing?

Capacity flexibility

With more than one supplier, brands can shift production based on demand, seasonality, or unexpected delays. Instead of relying on a single factory’s capacity, you can distribute workloads and reduce the risk of bottlenecks. This also makes it easier to test new products or launch limited runs without disrupting your main production line.

Reliability and speed

Having multiple sourcing regions means you’re not tied to the constraints of one country’s workflow, regulations, or political climate. When one supplier faces delays, you can rely on alternative sources to keep production moving. This reduces stockouts and speeds up the replenishment cycle.

Essentially, diversified sourcing increases delivery speed and helps brands maintain operations and avoid scrambling when unexpected issues arise.

Customer experience

When your supply chain is stable and diversified, you’re better equipped to restock popular items on time and keep pricing consistent even when tariffs shift. Customers can get faster shipping, fewer delivery delays, and clear expectations around availability.

Plus One Sourcing also supports smoother fulfillment planning, so brands can avoid the “Out of Stock” notices that frustrate buyers and lead them to competitors.

Competitive rates

When you work with different suppliers across different regions, this creates natural competition, giving you more room to negotiate pricing, payment terms, and production timelines. When tariff rates shift, you’re flexible enough to adjust your sourcing mix without significantly impacting your bottom line.

What are the cons of Plus One sourcing?

Complexity

Adding new suppliers means more processes, communication channels, and moving parts. This matters because each region may have different lead times, compliance requirements, and administrative steps.

Without clear documentation and oversight, misalignments can slow down the supply chain. For many brands, this added complexity requires stronger internal coordination and more structured operations.

Inventory concentration spread

Splitting orders across multiple suppliers means inventory will be produced, and sometimes stored, in different locations. This can make inventory management more challenging, because you’ll need to forecast demand, manage stock levels, and coordinate replenishment.

That said, brands need stronger inventory monitoring and more frequent checks to keep everything aligned. Without a smart system or clear communication between sourcing and operations, you might overstock at one source while understock at another.

More contracts to negotiate

Each new supplier relationship entails its own agreement on pricing, timelines, quality expectations, and shipping terms. Negotiating and maintaining these contracts takes time and ongoing management, especially as costs and market conditions change.

This added administrative load can stretch small teams, especially when working across multiple countries with different regulations.

How to Get Started with Plus One Sourcing

Adopting a Plus One strategy doesn’t require a full overhaul of your entire supply chain. Start with these steps to help you understand where you’re exposed and where you can build flexibility.

Audit your current sourcing exposure

Begin by reviewing:

• Where your products come from
• How dependent are you on a single country
• Which SKUs are most at risk if tariffs or trade policies shift

Moreover, check landed costs, lead times, and production reliability to see where you’re most vulnerable. This helps you make informed decisions about where diversification will have the most impact.

Identify potential alternative regions

Check countries that can support your production needs and match your quality standards. Consider these too:

• Tariff rates
• Labor costs
• Raw material availability
• Overall logistics expense

The goal is to find suppliers that complement your primary source instead of replacing them.

Test with smaller volumes first

Instead of shifting production right away, start with a small percentage of your catalog or trial orders. This gives you the chance to evaluate sample quality, communication, invoice accuracy, and shipping timelines. Plus, it helps reduce risk while building confidence before scaling.

Bonus: Partner with logistics experts to optimize costs

Managing new sourcing lanes, duty structures, and shipping timelines can get complicated fast. Working with shipping partners who specialize in multi-source strategies helps simplify everything from freight coordination to carrier optimization.

iDrive Logistics supports brands through this transition by understanding these complexities and working with them to provide the best transportation solutions for each unique situation.

Optimizing Your Supply Chain with Plus One Sourcing

Tariffs continue to shift worldwide, and for companies that rely heavily on a single sourcing country, even a small adjustment in trade policy can impact landed costs, delay production, and disrupt fulfillment.

That’s why brands that use Plus One Sourcing are gaining a real advantage by protecting profitability and improving resilience while maintaining customer trust.

Now is the best time for brands to take a closer look at their sourcing setup. Identify where you’re vulnerable, where costs could spike, and which regions can support your growth. These could be your first steps toward building a reliable and flexible supply chain.

If you’re ready to turn this strategy into a practical plan, iDrive Logistics is here to support. Schedule a free consultation today and see how you can build a resilient and cost-efficient supply chain.

About the Author

iDrive Chief Operating Officer Brett Haskins brings more than 20 years of SaaS software and entrepreneurial experience to the team. He oversees operations, focusing on new product development and driving innovation.