A. On the supply side

International posting has become a way of using labour, a way of organising work. It is an economic activity in itself, a ‘business model’, very close to temporary work, from which it borrows some features, but with the particularity of being based on the diversity of legal systems and its exploitation. An international version of the provision of labour has emerged, with specific legal characteristics. The mobility of workers is not based on the need for a company to send its workers to another country to provide services to a client, which is the first conception of the freedom to provide services, as it was conceived by the Treaty of Rome. It results from the choice of a company, independently of any international activity, to use an available, qualified and, above all, less expensive workforce. The legal framework of posting, foreseen and promoted by the European Union for the purpose of the expansion of the economic activities of Union companies has given rise to a new type of economic activity, which consists in creating the legal conditions of posting, in order to provide for the demand of labour, and reduce the cost of labour.

The market of international posting is based on the provision of workers, who are not fully covered by the law of the country in which the company for which they work is located. The services offered are services of provision of posted workers. The workers concerned may come from any country in the world, provided that they can be made available within the EU. They may be nationals of third countries,Footnote ¹⁵ which is increasingly common,Footnote ¹⁶ and do not necessarily have any connection with an EU country. They may also be nationals of the State in which the posting takes place, another sign, one might think, of the break with the concept of posting as a means of providing services distinct from the provision of labour.Footnote ¹⁷ Of course, the posting of nationals to their State of origin may concern workers who have made use of their freedom of movement to go and work in another State, which does not prevent their employer from posting them to their State of origin, if necessary. However, it cannot be excluded that such postings are the result of the use of posting as a means of evading part of the social law of the host State, which is not made impossible, under the regime of posting, when workers are nationals of that State.

What better example of the transformation of posting than that of the company Team Power Europe, which was recently referred to the Court of Justice? The activity of this Bulgarian company consists in making workers (who are not necessarily nationals of Member States) available to companies located in another Member State. Team Power Europe is therefore not a temporary work agency like any other but a company whose particularity is to offer, in other Member States (Germany, in this case), workers from Eastern European countries. On the company’s website, this unequivocal formula appears: ‘Have you ever thought about hiring qualified workers from Eastern Europe, but the language barrier scares you? Forget those concerns. Some of our candidates already have a respectable knowledge of German or English and are also eager to improve their language skills.’

In sectors in which companies like Team Power Europe provide their services (road transport, catering, IT, etc), there is a shortage of personnel in certain EU countries, which seems difficult to remedy. International posting is therefore, first of all, a solution to the lack of qualified manpower. Posting facilitates mobility of workers (from Eastern to Western Europe, in particular): this is its least questionable part, even if this mobility weakens the economy of the countries of origin.Footnote ¹⁸

The other part of the offer is more questionable because it is based on the exploitation of differences between social legislations, within the Union. Yet this is the core element of the offer of companies like Team Power Europe: to provide workers at lower cost, because a less costly social legislation applies. In this regard, although almost all the rules of labour law of the State where work is performed are applicable, since Directive 2018/957 was adopted,Footnote ¹⁹ workers remain nonetheless covered by the social security system of the State of their employer. This is what makes the offer particularly attractive. The activity of companies specialised in posting within the Union, such as Team Power Europe or other companies involved in cases recently decided by the Court of Justice,Footnote ²⁰ is largely dependent on this applicability of a social security system other than that of the State, in which work is conducted.

B. On the demand side

The example of Team Power Europe indicates that the demand for posted employees, albeit not strictly limited to certain sectors, is nonetheless concentrated in some. In terms of fields and professions concerned, the list displayed on the company’s website includes: manufacturing and production, welding and assembly, health care, engineering, IT, and telecommunications, logistics, drivers, painters and varnishers, mechanics, window installers, etc. An entire section is also devoted to ship maintenance and repair, the company’s area of specialisation, which recalls that shipyards are one of the sectors in which international posting plays a crucial role.

The list of fields of activity of Team Power Europe’s clients is more diversified than the results of recent statistics on the distribution of posting by sector, which place construction and road freight in the lead.Footnote ²¹ The measurement of the phenomenon, carried out at the request of the European Commission, must however be taken with caution, as the statistics are based solely on postings that are notified to the national authorities.Footnote ²² With regard to the construction sector, in which several Member States have reported a high proportion of posted workers, in 2019, the statistical study confirms the impression given by the litigation before the Court of Justice.Footnote ²³

However, the demand is not limited to the construction sector. The food industry is also one of the sectors where the demand for posted workers is significant, in some Member States. In particular, posted workers represented a high proportion of workers in the German meat processing industry, until changes took place, in recent years.Footnote ²⁴ Important decisions by the Court of Justice concern workers posted from Hungary to Austrian slaughterhouses.Footnote ²⁵ Working conditions in slaughterhouses and the very high turnover in this sector suggest that the demand for posted workers is stimulated at least as much by the prospect of a reduction in labour costs as by the difficulty of finding workers. In this sector, where the subcontracting model has been identified as the cause of social rights violations, subcontracting is reportedly more widespread than in any other economic sector.Footnote ²⁶ Some recent articles have reported on the proliferation of recruitment agencies, whether subcontractors, multiservice agencies, or cooperatives, to meet the sector’s growing need for flexible, low-paid staff.Footnote ²⁷ However, labour costs in Germany are significantly lower than in other major European meat-producing countries such as France, Belgium, the Netherlands or Denmark.Footnote ²⁸ Almost all companies in this sector have made extensive use of workers hired by specialised service companies that often recruit directly from Eastern Europe.Footnote ²⁹ Although no official figures are available, it is estimated that 90 per cent of workers employed in slaughterhouses and meat packing are involved.Footnote ³⁰ Only a small core of workers are employed directly, the majority of the others, employed by subcontractors, benefit from much less favorable conditions.Footnote ³¹

As for the agricultural sector, the demand for posted workers is significant in certain countries such as France.Footnote ³² The proportions remain modest, however, if one considers the number of notifications of posting, which is used to measure the phenomenon. However, as in other fields, the justification for calling on posting, in this sector, in particular the need for workforce and the working conditions of the workers concerned, must also be taken into account: these factors could lead to an increase in demand, if nothing is done to prevent it.

All in all, the posting of workers for which there is the greatest demand concerns the essential but most vulnerable workers that the Covid-19 crisis has made more visible.Footnote ³³ In the agricultural sector, seasonal workers, whose situation was deemed particularly worrying during the crisis, are, in part, posted workers.Footnote ³⁴ The Terra Fecundis case threw light on the unacceptable situation of agricultural workers at the intersection of two particularly vulnerable categories of farm workers: seasonal workers, and posted workers, who meet the demand of certain companies in the farming industry. Indeed, it is not so simple to derive the undignified working conditions, in this case, from the fact that these workers were posted workers. Determining whether these workers faced worst working (and accommodation) conditions than other local and/or migrant workers in the agricultural sector would require a in-depth comparative analysis. But even if the conclusion must be nuanced, it cannot be ignored that the particularly precarious situation of posted workers, which are dependent on temporary placements by a service provider, and have no direct relationship with the user of their services, who is not their formal employer, can contribute, together with their migrant status, to their exploitation.

The market of international posting, which has developed over the last 30 years, thus allows for the meeting of a supply, the provision of workers, whether EU nationals or not, with varying qualifications, and a demand, in sectors where there is a labour shortage and, above all, where organisations seek reduction labour costs. The growth and dynamism of this market suggest that it should not remain concentrated in certain sectors, which is reflected in the relative diversity of Team Power Europe’s fields of activity. By expanding into new areas, the market of international posting can lead, as the meat sector illustrates, to a transformation of forms of employment, and a sharp decline in the social rights and working conditions of the workers concerned. EU regulation concerning posting of workers has indeed taken into account this risk of infringement on social rights, including, in Directive 2018/957, by referring to the right to equal treatment of posted workers. However, it did not envisage putting an end to the market of international posting, which leads to extreme forms of exploitation of workers.

A. Two facets of the exploitation of differences in social protection costs

More than a question of worker protection, the exploitation of differences in the cost of social protection raises, in the first place, the question of resources of national social security systems, and of their survival, when placed in competition with each other. It is mainly from this angle that the most recent cases before the Court of Justice were presented.Footnote ³⁸ The Vueling case, which concerns airline personnel, is very enlightening, in this respect.

In this case, the company was accused of having fraudulently affiliated one of its employees to the Spanish social security system, whereas affiliation to the French system was required.Footnote ³⁹ The Court of Justice accepted that the French institutions and courts could reasonably consider that the posting certificate issued by the Spanish institution had been obtained or invoked fraudulently. However, even if the elements (objective and subjective) allowing characterisation of a fraud were met, the Court of Justice did not allow national courts to set aside this certificate, specifying that the procedure provided for by the coordination rules, applicable in such a case, must be implemented, in the first place.Footnote ⁴⁰ Before the Court of Justice, the question raised was one of coordination of social security systems: protection of workers was not central. This explains the importance given by the Court to the principles on which this coordination is based: loyal cooperation, mutual trust between national authorities and the need for one single legislation to apply. The question raised did not concern working conditions, which posting would have deteriorated, even if, as the Court of Justice later recognised, ‘downward pressure on the social security systems of the Member States may result in a reduction in the level of protection offered by them.’Footnote ⁴¹

Criticisms of this decision have focused on the difficulty faced by judges in dealing with cases of fraudulent application of a foreign social security system. Indeed, there is no doubt fraud is likely to cause significant damage to the social security system evicted, and the method imposed by the Court of Justice to remedy the situation does considerably hamper the action of the authorities and courts, when they try to combat such fraud.

In the Vueling case, the question of the level of protection provided to employees by the French and Spanish systems did not arise, nor was it at the origin of the pilot’s action before French courts. Although the purpose of the action was to bring the situation under French law, the objective was to apply French labour law and to obtain, in particular, the benefit of compensation for undeclared work and the right to paid leave.

It is thus quite clear that the Court of Justice has no intention to facilitate the fight against fraudulent affiliation of workers to a less costly social security system. Neither the protection of the social security systems themselves, nor the risk that affiliation to one or the other of the national systems would result in less protection for workers, seem to be sufficiently pressing to call into question the solutions in force. Other objectives (coordination, mutual trust) take precedence. But EU law might be obliged to evolve, in order to avoid manoeuvres designed to take advantage of differences between social protection systems, when it appears that these operations foster extreme forms of exploitation. In other words, EU law evolution could derive from the need to put an end, not to situations similar to those in the Vueling case, but to situations closer to the Alpenrind case, in which the different factors that encourage posting of workers combine to create a system of exploitation that can be considered as a form of modern slavery. What EU law must take into account, and combat, is the link between law shopping in the domain of social security, and the most serious forms of exploitation of workers.

B. Fighting against extreme forms of exploitation of human labour through posting

There are very different conceptions of slavery. One insists on the possession or control exercised over the body of others, the other on the act of de-socialisation and exclusion, the ‘social death’ that slavery entails.Footnote ⁴² In all cases, the power exercised over others and the exclusion from social life aim at economic, or sometimes sexual, exploitation of victims.Footnote ⁴³ Even when it is temporary and based on a contract, ‘the radical alteration, stigmatisation and banishment from the dominant forms of social life distinguishes slavery from other forms of dependence.’Footnote ⁴⁴ If slavery can be recognised, not by invariant criteria, likely to allow for a unique, universal definition, but rather by a cluster of elements, a multiplicity of features, whose kinship, from one society to another, signals the presence of institutionalised slavery, could it be that, in some of its current forms, the market of international posting constitutes institutionalised slavery?

In the Terra Fecundis case, for example, the affiliation of seasonal agricultural workers employed in France to the Spanish social security system was coupled with working conditions contrary to human dignity. From 2012 to 2015, more than 26,000 employees of this company, the majority of them from South America (mainly Ecuador) were driven to their workplace and put to work on French farms, where they were forced to work up to 70 hours a week, for some, without overtime pay, without paid vacation allowances, without access to medical care. Conditions of accommodation, attributable to the farmers who benefited from the provision of services, were considered contrary to human dignity. The judgement delivered by the Marseilles Judicial Court on 8 July 2021 speaks for itself: the implementation of a fraud scheme as a business model is based on the use of an uprooted and docile workforce, for whom serious violations of local labour laws appears to be a very small sacrifice compared to the major economic advantage that a European salary represents.

In this case, the exploitation of the differences in cost of the social security systems and the exploitation of the workers were cumulative. The Judicial Court of Marseille resolved the first difficulty by cancelling the posting certificates, after a dialogue with the Spanish social security authority that had issued them: the activity of Terra Fecundis in France was considered as ‘permanent and without foreseeable term’ as well as the employment of workers in France. Penalties were imposed for undeclared work. French social security institutions demanded payment of unpaid contributions and obtained unprecedented compensation before the Judicial Court of Marseille.Footnote ⁴⁵ As for workers, compensating for their loss seems more complicated. Indeed, workers are not in the best position to make their voices heard and claim the benefit of their rights, especially when facts date back several years. Although heavy sanctions eventually applied, the case illustrates the complexity of the mechanisms involved, and the difficulties in controlling and putting an end to the worst forms of worker exploitation.

Drawing general lessons from this single case would be contestable. However, this case can be considered representative of the larger problem resulting from the existence of a market of international posting, which goes beyond this case alone, and the farming sector. The pattern of exploiting the shortage of labour, for the hardest and lowest paid jobs, together with the vulnerability of posted workers, especially when they are third country nationals, can be found in a number of other cases, for example in the meat industry, in Germany and Austria, or in the construction sector, in France.Footnote ⁴⁶

Faced with these extreme situations, the law is not totally powerless. In France, the prosecution of Terra Fecundis was facilitated by the criminalisation of the situation in which a person uses posting of workers irregularly (when the activity is, in fact, carried out on national territory, on a regular, stable, and continuous basis): such a situation falls within the category of undeclared work, potentially leading to criminal sanctions.Footnote ⁴⁷ This solution is in line with the requirement of a genuine activity of the company in the Member State where it is established, a condition for the exercise of the freedom to provide services, which was included in directive 2014/67 on the enforcement of directive 96/71 concerning the posting of workers.Footnote ⁴⁸

In terms of social security, the solutions adopted by EU law are also based on the principle that posting can only be carried out by a company with a real, ‘substantial’ activity on the territory of the State in which it is established. More precisely, in order to maintain the affiliation of workers to the social security system of the country in which the employer is established, it is necessary that the employer ‘ordinarily performs substantial activities, other than purely internal management activities, in the territory of the Member State in which it is established’.Footnote ⁴⁹ In the Team Power Europe case,Footnote ⁵⁰ the Court of Justice was therefore able to consider that EU law precludes the provision of cross-border temporary employment services with the application of the social security system of the country in which the temporary employment company is established, if this company does not carry out a significant part of the staffing in the country of its establishment. The solution was not self-evident: the Court could have considered that the activities of managing the provision of personnel (selection, recruitment and social security affiliation of temporary workers) were substantial activities for a temporary employment agency, which would have favored the development of the market of international posting. On the contrary, it chose to avoid creating an incentive for companies ‘to choose the Member State in which they wish to establish themselves on the basis of the latter’s social security legislation with the sole aim of benefiting from the legislation which is most favourable to them in that field, and thus to allow “forum shopping”’.Footnote ⁵¹

However, the Team Power Europe case, as well as that of Terra Fecundis, illustrate that, if the exclusion from the scope of legal posting of purely international posting activities can be sanctioned, especially when it leads to extreme forms of exploitation, proving the absence of substantial activity in the State of establishment of the company is far from simple, and the protection of workers, who are victims of exploitation not guaranteed, in the current legal framework.

Other, more vigorous actions seem necessary. In Germany, for example, poor working conditions in the meat sector led to the adoption of a statute, in 2020, to improve workers’ protection.Footnote ⁵² The law prohibits self-employment and temporary work in the meat industry. As of 1 January 2021, no self-employed workers shall work in the entire processing chain of the meat industry (slaughter, cutting, and processing of meat), and as of 1 April 2021, no temporary workers shall be made available in this sector.

If one agrees that the international posting of workers is a condition for the existence of a market that can lead to extreme forms of exploitation, the rather radical path followed by Germany is probably the best. As the Court of Justice has pointed out, the purpose of the posting regime, is ‘to guarantee that the right to free movement of persons can be exercised effectively and, thereby, to contribute towards improving the standard of living and conditions of employment of persons who move within the European Union’.Footnote ⁵³ When it turns out that it does not allow such an improvement but leads to a very severe deterioration of working conditions in the Union, these rules lose their raison d'être and should be abolished.

As a result, the way forward would be to prohibit the provision of workers by foreign temporary employment agencies or by companies whose sole activity is the provision of personnel, either in certain sectors (where problems are particularly severe and systemic) or across the board. Such a drastic limit to free provision of services could indeed be legally challenged on the basis that it constitutes a discrimination on nationality, and an excessive restriction to a fundamental freedom enshrined in the TFEU. To resist this critic, EU regulation would have to be justified by sufficiently pressing public interest needs, in order to pass the proportionality test. This is why it seems so important to throw light on the extreme forms of exploitation that can result from posting: only the particularly undignified working conditions that posting makes possible, and fosters, can justify a prohibition that indeed strongly limits free provision of services.

So far, such a direction has not been taken. When Directive 96/71 was revised, in 2018, the preamble of the new Directive 2018/957 stated that ‘experience shows that workers who have been hired out by a temporary employment undertaking or placement agency to a user undertaking are sometimes sent to the territory of another Member State in the framework of the transnational provision of services’ and that ‘the protection of such workers should be ensured’.Footnote ⁵⁴ Thus, the text does not ignore the existence of a complex organisation of posting, on the scale of the Union, which goes through the intermediary of temporary work agencies or placement agencies located where the affiliation of workers to the social security system makes it possible to reduce labour costs. It does not ignore either that these operations risk affecting the protection of workers. However, in order to deal with this situation, the new directive merely provides for an obligation to provide information.Footnote ⁵⁵ This solution seems highly insufficient. It is indeed out of the question to abolish economic freedoms, and, in particular, freedom to provide services, which are a core element of EU integration. But EU law must find ways to put an end to misuses of this freedom that favor extreme forms of labour exploitation.