How should a development letter that can generate a bill be written?

Email is the most commonly used communication tool for foreign trade professionals. Many people send dozens or even hundreds of emails every day, yet receive very few replies. Over time, beginners can easily feel frustrated. But this situation is not impossible to change. With the right learning approach and a few practical tips, results can improve quickly.
 
In this article, we’ll break down several common mistakes and share easy-to-apply techniques to help you get better results faster.


 
1. Unattractive Subject Lines
 
Examples:
* Product Catalogue 2025
* New Products Introduction
* High Quality Products from China
* Best Price Supplier
 
These subject lines are very common among beginners—and naturally, their open rates are extremely low. The main problem is obvious: *they don’t clearly communicate any value*. When a subject line doesn’t tell the reader why they should care, it’s only normal for it to be ignored.
 
Now compare them with these improved versions:
 
* Cut Packaging Cost by 30% — New Material for XXX
* Reduce Shipping Risk for XXX Products
* Exclusive Design for European Market — Limited Free Samples
* How Top Importers in Germany Are Saving on XXX
 
Much better, right?
 
Buyers process a large volume of emails every day, and the subject line is the key factor they use to quickly decide whether an email is worth opening. If you fail to grab their attention, low open and reply rates are inevitable.
 
2. Email Body Is Too Long
 
A long, text-heavy email may look detailed, but most buyers simply don’t have the patience to read it all. When it comes to cold emails, *more content does not mean better results*. You only need to clearly communicate two things: features and benefits.
 
Example:
 
Dear XX,
With EU rules tightening on packaging waste and recyclability, many importers are seeking solutions that are both cost-effective and fully compliant.
 
We’ve developed a 100% recyclable material for home-appliance packaging that cuts total packaging cost by up to 20% while meeting the latest EU directives.
 
Benefits:
* EU compliance guaranteed — avoid delays and penalties
* Recyclable materials — align with eco-conscious consumers
* Cost savings — lower material and freight weight
We’re happy to send free samples this week for your in-house testing.
Would you like me to arrange it?
Best regards,
XX
 
Clear, concise, and focused on value.
 
3. Learning and Continuous Improvement
 
Whether it’s experienced traders or top sales performers, no one becomes successful overnight. Everyone goes through the same process:
*no replies → imitation → review → optimization → review again…*
 
One day, you develop your own proven approach—and by then, you’ve become the “veteran” or top performer yourself.
 
Without review and optimization, you’re simply repeating ineffective actions, which leads to growing frustration and, ultimately, poor performance.
 
Cold emailing is a numbers game. You can’t force buyers to reply, but you *can* continuously increase your hit rate through review and optimization.
 
So stop chasing the idea of a “perfect universal template.” Buyers aren’t moved by your first 100 emails—they respond to the 101st one that hits the right pain point and business interest. And you find that email through consistent review and improvement.