SUNHOUSE: how to compete with a bigger, stronger rival

How SUNHOUSE changed its cost structure to overcome a competitive disadvantage, plus four questions for building an advantage rivals cannot easily copy.

Portrait of Nguyễn Xuân Phú

Image source: Internet. Images supplied by the contributor.

30-second summary

Facing a competitor selling below its own production cost, SUNHOUSE invested in its manufacturing chain to address the underlying disadvantage: its cost structure.

A question every startup should answer

This is a question Shark Nguyễn Xuân Phú has repeatedly put to startups.

Fewer people know that SUNHOUSE itself once faced a similar situation: a stronger, more established competitor that could sell at prices SUNHOUSE could barely match.

How the company addressed that challenge offers a valuable lesson in competitive advantage.

When a competitor sells below your production cost

SUNHOUSE began as Phú Thắng Company Limited, established in 2000. In its early years in household goods, the business imported most of its materials, keeping production costs high.

According to Nguyễn Xuân Phú’s account, reported by CafeBiz from VTC News’s Đường tới thành công programme, SUNHOUSE was competing with a Korean company that already had a manufacturing advantage in Vietnam.

The problem was that the competitor’s selling price was even lower than SUNHOUSE’s production cost.

The competitor controlled most of its material supply, while SUNHOUSE still depended on imports. Even at a price equivalent to SUNHOUSE’s cost, the competitor could still make a profit.

Continuing to cut prices could mean losing more money with every sale.

Keeping prices unchanged made its products harder to sell.

Phú described it as a problem that seemed almost impossible to solve.

Nguyễn Xuân Phú during a conversation
Image source: Internet. Images supplied by the contributor.

SUNHOUSE changed its cost structure instead of continuing a price war.

Rather than simply trying to sell for less, the company chose a much harder route: investing upstream in manufacturing to gain control over materials and components.

SUNHOUSE invested in aluminium rolling, handles and knobs, plastic moulding and other supporting production processes.

In an account published on SUNHOUSE’s own website, Nguyễn Xuân Phú said that after roughly two to three years of investment in supporting factories, the company could produce almost all its components, accessories and materials in-house by 2007.

The most important result was more than additional factories: costs fell substantially and the company gained greater control over production.

SUNHOUSE expanded strongly in its domestic market between 2007 and 2010. By 2016, its reported revenue was approximately VND 1.8 trillion.

Read nextApply this to an SME: when should you make or buy?
SUNHOUSE building with the brand’s signage
Image source: Internet. Images supplied by the contributor.

The lesson is not to build a factory whenever things get difficult

Reducing the story to “a competitor sells cheaply → we manufacture ourselves → we win” makes it easy to draw the wrong lesson.

The more important point is how SUNHOUSE identified the root cause of its competitive disadvantage.

Its weakness was more than a smaller brand. Its cost structure put it at a disadvantage against the competitor.

When the problem lies in costs, more advertising may not solve it. Neither may more promotions. Pressuring the sales team to sell more does not fix the underlying issue either.

SUNHOUSE addressed the source of its disadvantage directly: its supply chain and manufacturing capabilities. That is the central insight of this case.

Read nextRead next: how can a small business build a hard-to-copy advantage?
An illustration featuring Shark Nguyễn Xuân Phú and a problem-solving message
Image source: Internet. Images supplied by the contributor.

Business lesson: four questions before you react

When a larger competitor starts doing the same thing, small businesses often turn immediately to price cuts, more advertising, extra promotions, copying competitors’ products or selling more to offset thinner margins.

Sometimes those responses only address the surface of the problem. Before reacting, ask four questions:

1. Where is the competitor actually stronger? Capital, costs, technology, brand, distribution or customer data?

2. Can that advantage be copied? A promotion is easy to imitate. A supply system built over years is much harder to replicate.

3. If they sold the same product for 20% less, could your business survive?

4. What competitive moat could you build that even a well-funded rival could not copy immediately?

That moat might be technology, data, a customer community, distribution, operating processes, brand, manufacturing capabilities or the pace of innovation.

Read nextWork it out: would you remain profitable after a competitor’s 20% price cut?

The greatest competitive threat is more than a bigger rival.

The greatest danger is having an advantage that someone else can replicate within a few weeks.

That is why the challenge Shark Phú raises remains worth reflecting on. Entrepreneurs can ask themselves:

“If a competitor appeared tomorrow with more money, more people and almost the same offering, what reason would customers still have to choose us?”

Read nextPut it into practice: a 90-day competitive advantage plan
3 things business owners should know
  1. Identify the root cause of your disadvantage before cutting prices or increasing advertising.
  2. Control over inputs helped SUNHOUSE lower costs and gain production flexibility.
  3. A lasting advantage must be hard to replicate and suited to the business’s resources and context.
Key takeaways

Go beyond surface-level competition. Address the source of your disadvantage and build capabilities that give customers a reason to keep choosing you.

Suggested actions

01Compare your cost structure and capabilities with those of your competitor.
02Model a 20% competitor price cut and calculate its impact on your margins.
03Choose a hard-to-copy advantage to develop within your available resources.

Series: Competitive advantage: from SUNHOUSE to action

  1. What should you do when a bigger, stronger competitor copies you?
  2. Hard-to-copy competitive advantage: where should a small business start?
  3. A competitor cuts prices by 20%: should you match or hold your price?
  4. A 90-day plan to build competitive advantage: choose one promise and deliver it
  5. When customers say “they are cheaper”: how to retain them beyond discounts
  6. Make or buy: do not turn the SUNHOUSE lesson into a rush to build a factory

Sources and updates

Sources: SUNHOUSE; Nguyễn Xuân Phú’s account reported by CafeBiz from VTC News’s Đường tới thành công programme. Historical milestones and revenue are attributed to those sources; the 20% price cut is a hypothetical scenario. The closing question is an editorial paraphrase, not a verified verbatim quotation. Image source: Internet, supplied by the contributor.

Last updated: 11 Oct 2026
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Bài Học Kinh Doanh Editorial Team

Editorial Team | Bài Học Kinh Doanh

Ban Biên tập Bài Học Kinh Doanh tổng hợp và biên tập các nội dung về kinh doanh, thị trường, quản trị, công nghệ và khởi nghiệp, với mục tiêu giúp người đọc hiểu rõ vấn đề, nhìn thấy bài học phía sau dữ kiện và có thêm cơ sở cho các quyết định thực tế.

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